Brass, Copper, Zinc and its alloys related useful information

Deep recycling industries specialize in manufacturing and exporting a variety of Brass components, as per client's requirement. The products ranges of Brass Fasteners are from Brass Anchors, Brass Nuts, Brass Washers, Brass Molding Inserts

2009-02-15T17:51:00.001+05:30

Deep recycling industries specialize in manufacturing and exporting a variety of Brass components, as per client's requirement. The products ranges of Brass Fasteners are from Brass Anchors, Brass Nuts, Brass Washers, Brass Molding Inserts, Brass Wood Screws, Brass Neutral Links to Energy Meter Terminals, Energy Meter Screws. The list doesn't end here. There is more, such as Toggle Switch Parts, Brass Nipples, Brass Faucets, Brass Adapters. We manufacture the above mentioned products for various industries like Electronic & Electrical, Sanitary ware Applications, Wood Working Tools, Automobile Industry, etc.

www.deepri.com
www.dri.co.in
www.brasssanitary.com

These Brass Neutrals are installed in various types of Distribution Boards, Panel Boards, Switch Gears and Electrical Switch Boards

2009-02-15T17:46:00.001+05:30

We manufacture Brass Neutrals in various sizes & dimensions like:

	Brass Neutral 12 Holes
	Brass Neutral 17 Holes
	Brass Neutral 19 Holes
	Brass Neutral 25 Holes
	Brass Neutral 30 Holes
	Brass Neutral 35 Holes
	Brass Neutral 40 Holes and many more..

These Brass Neutrals are installed in various types of Distribution Boards, Panel Boards, Switch Gears and Electrical Switch Boards

	Size: Shall be manufacture only as per Customer's specified Drawings and Samples.

	Threading : Various types and sizes of Threading like B.S.W., B.S.F., B.S.B., B.S.P. & B.S.P.T as per British Standard Whitworth Form and N.C. & U.N.C., N.F. & U.N.F., N.P.T & N.P.S., N.S., N.E.F. etc as per American National Form Threads are available. All threads shall be as per International GO & NO-Go Standards.

	Plating/Finish Available: Various types of Plating/Finish like Natural, Nickel, Silver, Tin or as specified are available as per specified layer of microns.

	Material : High grade free cutting brass as per IS 319 (Type 1) or BS 249 (Type 1) or any other special Brass material composition as per customer requirement.

www.deepri.com
www.brasselectricalparts.com
www.dri.co.in

brass components

2008-12-23T19:43:00.001+05:30

Deep Recycling Industries
successfully service the diverse requirements of the copper tube, Brass Parts, and Brass tube, brass electrical parts
market which includes applications in

· Water supply Brass Inserts PPR fittings
· Drainage and sanitation
· Gas reticulation
· Refrigeration
· Heating
· Air conditioning
· Electrical components , Control panel , earthing accessories

· General engineering

With many years experience supplying international customers

www.deepri.com

PPR Fittings ppr pipe brass insert brass Insert brass ...

2008-12-08T12:38:00.001+05:30

We are professional brass fitting,brass pipe fitting,brass tee,elbow
fitting,brass thread fitting,fitting for pex pipe, ppr fittings,press
fitting, plumbing fitting, brass compression fitting, valve, faucet,
manufacturer and supplier in india. We can produce brass fitting
according to your requirements.More types of brass fitting, thread
fitting,plated chrome fitting wanted Brass Compression fittings for PE
pipe Straight nipple male Elbow male Elbow double, Elbow female, Tee
male, Tee, Tee female, Straight nipple male, Straight nipple female
Elbow male Compression fittings for PE pipe .

Brass Male Inserts Female Inserts PPR Fittings Brass Female Inserts
PPR Fittings Brass Male
Inserts PPR Fittings ppr pipe brass insert brass Insert brass ...

http://www.deepri.com/brass-ppr-inserts.htm

Precision Turned Components, Brass Fittings, CNC Turned Parts Manufacturers

2008-12-02T12:40:00.001+05:30

Precision Turned Components, Brass Fittings, CNC Turned Parts Manufacturers
Manufacturers of Precision Turned Components, Brass Fittings and CNC Turned Parts
We welcome you to the world of DEEP RECYCLING INDUSTRIES. A company with a vision to 
 produce Precision Turned Components , Brass electrical, neutral links, terminal bars,
for the global market.

We at DRI in a short span have made inroads into the world market. 
 What we do best is help you. As a global leader in the manufacture and export of micro precision 
Brass Fittings and CNC Turned Parts, we work very closely with some of the leading consumers 
 and suppliers of Brass INSERTS of the world using our expertise to improve performance with innovative, 
value added products.

Neutral Links Bars & Terminal blocks

2008-11-09T13:20:00.000+05:30

Neutral Links Bars & Terminal blocks are used as an accessory in Panel Boards & Electrical Board in Industries like Electrical, Electronics & Telecommunications. It is a considered as a backbone in Building Circuit Protections such as MCB, Switchgears, Circuit breaker, RCD etc. Panel Board (Distribution Board) comprising of copper bus bars, brass neutral links, and earth links to facilitate effective distribution of current. It incorporates safety devices such as MCBs, ELCBs and Isolators, which serves to protect the installation. Brass Neutral Link/Bar & Terminals are very crucial components in every application of its nature. It plays major role in Isolation of Electric equipment & clearing faulty downstream, by means of Switchgear and preventing short circuit & protecting electric circuit from damage caused by overload, in the form of Circuit breaker & so on. Because we understand this criticality, we are committed to deliver high class royal quality Brass Neutrals Links & Terminals as per International Standards & Specifications,

PCB UNIVERSAL SCREW TERMINAL BLOCKS, Pluggable Terminal Block, TB series Fixed Terminal Blocks, circle pre insulated terminal block, terminal connector, terminal block factory, BS Fused Terminal blocks - screw less wire clamp, KF15E Terminal Block

deep recycling industries

Brass Casting

2008-11-02T11:06:00.001+05:30

Brass Casting, as the name suggests, involves the use of brass as the molten metal. Metal Casting can be carried out by the way of sand casting only. Sand casting can be defined as a 'cast part' produced by formation of a mold from a mixture of sand and pouring the casting liquid (mostly molten metal) into mold. Then the air-cooling of the mold takes place. After the solidification of metal, the removal of mold takes place. The metal used here is brass. It is a known fact that brass is an alloy of copper and zinc. Hence, to be precise, the molten metal consists of two elements.

Sand molding consists of two types- 'Green sand' molding and 'air set' molding. The first one consists of a blend of moisture, clay, silica sand and other additives. The second one makes use of dry sand bonded to all the above materials except moist clay, by the way of using an adhesive, which is fast curing.

At times, there is a placing of a temporary plug (in the mold cavity) to enable the formation of a channel to pour the fluid which is to be molded. The molds of the second type, i.e. the air-set molds result in the formation of a 2-part mold. The two parts are bottom and top. The tamping-down of the sand mixture takes place as it gets added. Many a times, the final assembly of the mold is vibrated to get the sand compacted and get the unwanted voids filled. Then the molten alloy (brass) gets poured into mold. After the solidification and cooling of brass, the separation of casting from sand mold takes place. Normally, such molds are one-time usable.

Patterns: A designer or an engineer provides the design of the object to be produced. On the basis of this design, a pattern is built by an efficient pattern maker by the use of plastic, metal, or wood. Polystyrene can also be used. The DIY Metal Casting would get contracted during solidification. Non-uniformity can also result out of this. Therefore, the size of the pattern should be a bit larger as compared to the final product. 'Contraction Allowance' is the name given to this difference. Brass enters the mold cavity through a runner system including sprue and other feeders.

--
Divyang A. Pandya

The metal used here is brass

2008-10-31T18:44:00.001+05:30

The metal used here is brass. It is a known fact that brass is an alloy of copper and zinc. Hence, to be precise, the molten metal consists of two elements.

Metal Casting has endured through the ages since the time of Ancient Egypt, possibly longer. Since then small foundries have developed to meet the needs of the individual caster. There are several reasons that people choose to create their own home grown foundries. A top reason is the need to create parts and pieces that are no longer available on the market or that are just too expensive to purchase. Those who get into Metal Casting for this reason are usually interested in restoration projects, home improvement projects, or hobby building like model planes and trains. Artists are the other group that see metal casting as a cheap and easy way to create sculptures from small to large. Jewelers even use metal casting to create complex pieces that would just otherwise be impossible to create.

Brass Sanitary (C.P.Parts) Parts

2008-10-26T18:45:00.001+05:30

Brass Sanitary (C.P.Parts) Parts, Reducing Hex Bush ,
Tee, 3 PC Connector, Reducing Hex Bush, Tee 3 PC Connector, CP Socket
Double Nipple, Elbow, CP Socket, Double Nipple, Elbow, Extension Piece
Extension Reducer, Grohe Nipple, Extension Piece, Extension Reducer
Grohe Nipple, Hex Nut / Check Nut, Barrel / Long Nipple, Hex Nut / Check Nut
Barrel / Long Nipple

Brass Screw

2008-10-26T18:28:00.001+05:30

Since 2000, We are in trade of brass components fasteners and well equipped with technical and experienced staff to look after the quality of all the products. We assure that all parts which we supply are totally compatible and tolerances are in accordance with original equipment specifications.

Our production stringent quality control tests. Which results our products to be of world class. To meet the global demand of increasingly high standards, our plant is managed by highly skilled staff, right from purchasing raw material to finished good. Attention to detail at all stages of production has enabled us to live up to a reputation of delivering on schedule.

Manufacturers of Brass screws Brass nuts Brass washers and Brass fasteners are not well versed with various DIN standards for fasteners.

2008-10-19T20:22:00.001+05:30

Manufacturers of Brass screws Brass nuts Brass washers and Brass fasteners are not well versed with various DIN standards for fasteners. Here is the list-
DIN 84 DIN 85 DIN 93 DIN 94 DIN 95 DIN 96 DIN 97 DIN 99 DIN 124 DIN 125 DIN 126 DIN 127A DIN 127B DIN 128A DIN 128B DIN 137A DIN 137B DIN 186 DIN 188 DIN 258 DIN 261 DIN 302 DIN 315 DIN 316 DIN 404 DIN 417 DIN 427 DIN 431 DIN 432 DIN 433 DIN 434 DIN 435 DIN 436 DIN 438 DIN 439 A/B DIN 440 DIN 442 DIN 443 DIN 444 DIN 462 DIN 463 DIN 464 DIN 466 DIN 467 DIN 470 DIN 471 DIN 472 DIN 478 DIN 479 DIN 480 DIN 508 DIN 525 DIN 529C DIN 546 DIN 547 DIN 548 DIN 551 DIN 553 DIN 555 DIN 557 DIN 558 DIN 561A DIN 561B DIN 562 DIN 564A DIN 564B DIN 571 DIN 580 DIN 582 DIN 601 DIN 603 DIN 604 DIN 605 DIN 607 DIN 608 DIN 609 DIN 610 DIN 653 DIN 660 DIN 661 DIN 662 DIN 703 DIN 705 DIN 835 DIN 906 DIN 907 DIN 908 DIN 909 DIN 910 DIN 911 DIN 912 DIN 913 DIN 914 DIN 915 DIN 916 DIN 917 DIN 921 DIN 923 DIN 928 DIN 929 DIN 931 DIN 933 DIN 934 DIN 935 DIN 936 DIN 937 DIN 938 DIN 939 DIN 960 DIN 961 DIN 963 DIN 964 DIN 965 DIN 966 DIN 975 DIN 979 DIN 980V DIN 980 DIN 981 DIN 982 DIN 985 DIN 986 DIN 988 DIN 1440 DIN 1441 DIN 1443 DIN 1444 DIN 1445 DIN 1470 DIN 1471 DIN 1472 DIN 1473 DIN 1474 DIN 1475 DIN 1476 DIN 1477 DIN 1478 DIN 1479 DIN 1480 DIN 1481 DIN 1587DIN 1804W DIN 1804H DIN 1816W DIN 1816H DIN 2093 DIN 6319 DIN 6325 DIN 6330B DIN 6331 DIN 6334 DIN 6340 DIN 6796 DIN 6797 A/J DIN 6798 A/J DIN 6799 DIN 6885 A/B DIN 6887 DIN 6888 DIN 6911 DIN 6912 DIN 6913 DIN 6914 DIN 6915 DIN 6916 DIN 6917 DIN 6918 DIN 7338 DIN 7343 DIN 7346 DIN 7349 DIN 6924 DIN 6925 DIN 7513 DIN 7514 DIN 7515 DIN 7516 DIN 7603 DIN 7604 DIN 7967 DIN 7968 DIN 7969 DIN 7971 DIN 7972 DIN 7973D IN 7976 DIN 7977 DIN 7978 DIN 7979D DIN 7980 DIN 7981 DIN 7982 DIN 7983 DIN 7984 DIN 7985 DIN 7989 DIN 7990 DIN 7991 DIN 7993 A/B DIN 9021DIN 11023DIN 11024DIN 22424 DIN 22425 DIN 28129 DIN 80705

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brass Rod Hex Pipe Bar

2008-10-19T19:18:00.001+05:30

Deep recycling industries high quality brass rod, brass bar, and brass shapes in several different brass alloys
Brass rods (solid and hollow) are produced according to DIN 17660, 176172, 1756, 1761, 1763, 1782, 59752, BS 2874 EN 12164, 12165, 12168 and ASTM specifications

Copper -- the Metal We Can't Live Without

2008-10-07T17:23:00.001+05:30

Coppper THE METAL WE CAN'T LIVE WITHOUT
Market Wire (press release) - USA
So how can copper help? Earlier this year, the US Environmental Protection Agency (EPA) approved the registration of 275 copper alloys as antimicrobial

neutral links terminal block

2008-09-11T19:06:00.001+05:30

Manufacturer and supplier of brass components to custom specifications, Deep Recycling Industries manufactures electrical parts, lock parts, energy meter parts, precision-

turned parts, rivets, screw nut and bolts, switch parts, various type of anchors, pins, forged bolts, brass cable gland, brass sanitary parts to precision and international specifications. Manufacturer and Exporter of Fire Extinguisher, Cable Glands, Electrical Parts, Fasteners, Moulding Inserts, Brass Turned Parts, Smoking Parts, Surgical Parts, Agriculture

& Spray Parts, we work very closely with some of the leading consumers and suppliers of Brass Fittings of the world using our expertise to improve performance with innovative, value

added products. deep recycling industries Sanitary Parts, Fire Extinguisher, Cable Glands, E1w Cable Glands Bw Cable Glands,

Flange Type Cable Glands, Cw4 Cable Glands, Bw2 Part Cable Glands, Wiping Cable Glands, Electrical parts, Electrical Switch Parts, Fasteners, Moulding Inserts, Sanitary Parts,

Fasteners, Fasteners, Fasteners, Electrical parts, Fasteners. T Gas Fittings, Jet Elbow, Compression Union, Valve, Force Barb, Nozzle, Gas Fitting, Gas Fittings Plug, Force Barb - T, Single

Barb Elbow, Compressor Female Elbow, Compressor Male Brand -T Brass Terminal Block Brass neutral link : Manufacturer of neutral links and terminal blocks up to 1 metre length are

available. We also manufacture 4 way and 8 way brass neutral links and terminal blocks we also make terminal block in tin and nickle plated. We are manufacturing earth neutral bars in

sizes as per customer specification and We offer brass neutral links and terminal blocks for all types of panel board switch gears and electrical switch boards electrical wiring

accessories nut bolt anchor rivets all type of micro precision fasteners Multi Connector Terminals Blocks Brass Terminal Bars Terminals Blocks For Connectors Materials Include Ceramic and

Bakelite Spring Terminals Blocks PCB Terminal Bars Brass Neutral Bars Pin Terminals Spade Fork Terminals Crimp Terminals

din classification

2008-08-29T19:43:00.001+05:30

Illustration    Item    Description
DIN 432     DIN 432     Tab Washer
DIN 433     DIN 433     Small O.D. Flat washer
DIN 434     DIN 434     Square beveled washer
DIN 436     DIN 436     Square washer
DIN 438     DIN 438     Slotted cup pt. set screw
DIN 439B     DIN 85A     Hex jam nut
DIN 440     DIN 440     Flat Washer
DIN 444A     DIN 444A     Eye bolt
DIN 444B     DIN 444B     Eye bolt
DIN 462     DIN 462     Internal tab washer
DIN 463     DIN 463     External tab washer
DIN 464     DIN 464     Knurled thumb screw
DIN 466     DIN 466     Knurled nut
DIN 467     DIN 467     Thin knurled nut
DIN 470     DIN 470     Sealing washer
DIN 471     DIN 471     External retaining ring
DIN 472     DIN 472     Internal retaining ring
DIN 529C     DIN 529C     Anchor Bolt
DIN 551     DIN 551     Slotted flat point set screw
DIN 553     DIN 553     Slotted cone point set screw

Illustration    Item    Description
DIN 553     DIN 553     Slotted cone point set screw
DIN 555     DIN 555     Thick hex nut
DIN 557     DIN 557     Flange Nut
DIN 561     DIN 561     Hex head set screw
DIN 562     DIN 562     Square nut
DIN 580     DIN 580     Stud type lifting eye
DIN 582     DIN 582     Tapped eye lifting eye
DIN 603     DIN 603     Carriage bolt
DIN 603Mu     DIN 603Mu     Carriage bolt w/nut
Type 610     Type 610     Ensat manual insertion tool
Type 620     Type 620     Ensat automatic insertion tool
DIN 653     DIN 653     Knurled thumb screw
DIN 705A     DIN 705A     Set collar
WN 791     WN 791     Ribbed lock washer
WN 792     WN 792     Ribbed lock washer
DIN 835Fo     DIN 835Fo     Double ended threaded stud
DIN 906     DIN 906     Socket pipe plug
DIN 908     DIN 908     Socket Pipe plug
DIN 910     DIN 910     Hex pipe plug

www.deepri.com
--
Divyang A. Pandya

Neutral Bar Assembly

2008-08-22T09:45:00.001+05:30

A system of components which can be grouped into sets for assembly in various configurations to provide electrical neutral bar assemblies of different shapes and having different numbers of neutral-wire-receiving openings. The system, which is particularly suitable for use with neutral wires of relatively large ampacity, includes a plurality of insulating bases, a plurality of neutral bars of different lengths, and an interconnecting plate. One or more of the bases and one or more of the neutral bars with or without the interconnecting plate are arranged to be secured together in different configurations by bolts.

Copper Enhances Communications

2008-08-19T12:47:00.001+05:30

Copper and its alloys have played a critical role in electronics since the first electron tubes were created early in this century. In spite of the inevitable dominance of semiconductors, some $2 billion worth of tubes are still manufactured worldwide yearly, according to Edward J. Richardson, CEO of Richardson Electronics, Ltd., LaFox, Illinois, a major manufacturer and distributor of tubes.

Tubes still perform uniquely or better than semiconductors in several applications:

Induction-heating and microwave ovens are still mostly powered by magnetrons made using copper alloys.
Rectifier tubes made with copper alloys survive overloads better than semiconductor rectifiers.
Most large TVs and desktop computer monitors still depend on cathode ray tube (CRT) displays, which use copper alloys in their electron guns and screen masks. Portable TVs and computers use various solid-state displays.
Broadcasting, where some tubes are the size of jeroboams of champagne. Very-high and ultra high frequency communications still depend on tubes made of copper and its alloys.
Since radar was invented in the late 1930's, it has been powered by klystrons and magnetrons largely made of copper alloys. Varian Associates, one of the major sources for such tubes, recently sold its tube business to Communications & Power Industries (CPI), also in Palo Alto, California.
The VHF and UHF signals generated by the tubes are conducted to the antennas that broadcast them by hollow conduits called wave-guides and by couplers - both of which are often made of copper and its alloys.

"At high frequencies, copper is 30% to 40% more efficient than aluminum in wave-guides." That's according to G. Scott Ackland, manager of engineering services for Antek in Frederick, Maryland. Its wave-guides conduct the UHF frequency signals inside satellite earth stations. "We rarely use any material other than oxygen-free, high-conductivity (OFHC) copper. Sometimes we fabricated with bronze because that's what the military specifies," says Ackland. Besides its higher Antek because it's easier to fabricate. Kevlin Microwave Corporation also uses OFHC copper for the central conductor in radars, according to John Rice, sales manager for the Wilmington, Massachusetts-based manufacturer. The coupler is the component that conduits the signal from the fixed wave-guide to the rotating board or ground-based radar.

The vast majority of electron tubes are now made outside the U.S., mostly in the Far East. The inexpensive magnetrons that power microwave ovens are all made in South Korea, which is also a major source for CRTs used in TVs and desktop PCs.

Bronzes: Copper Alloys that Counter Friction

2008-08-19T12:46:00.001+05:30

Cast and sintered bronzes perform an important anti-friction function in millions of American homes, automobiles and trucks, and in virtually all heavy industrial equipment. A familiar example is the common kitchen food processor. These machines use bronze bearings to smooth the motion of their whirling blades. (See photo at left.)

For centuries, bronzes have played a major role in combating friction. And bronze bearings continue to hold their own, in spite of long-time competition from ball, sleeve and roller bearings made of steel - and even those bearings may require bronze retainer rings.

Until early in the Industrial Revolution, bearings for vehicles and mechanical equipment were made of hardwoods. As more massive and faster-moving machinery was created, a stronger, longer-lasting bearing material was needed. Various bronze alloys were developed and are now used to make bearings in enormous variety for equipment from giant earth movers to kitchen blenders.

There are two basic ways to make bronze bearings: casting and sintering. Basic forms include: cylindrical sleeves or flanges; flat, donut-shaped thrust bearings; or disk-shaped bearing plates. Solid cast bearings are made from a variety of bronzes. For very demanding applications, William E. Austerberry, vice president of the National Bronze Mfg. Co., Detroit, recommends C95400, which contains 10% to 11.5% aluminum. This tough bronze has a tensile strength of 100,000 psi, nearly that of steel. It is also acid resistant. Although C95400 is very hard, hardened steel is slightly harder, so that the bronze is sacrificed, or worn, first. Parts that are either costly or difficult to replace are protected by these comparatively inexpensive bronze bearings which are expected to wear out over time and to be replaced periodically.

For less demanding applications, less costly C93200 is commonly specified. For applications involving high loads but low speeds, C90300, a tin bronze, referred to historically as Navy G, is recommended. "This strong material can stand repeated pounding," says Austerberry.

If corrosive salt water is present, then C92200, a medium-strength, free machining bronze that offers good brazing qualities, is the alloy of choice. Salt water will not corrode it. Where lubrication is doubtful, designers usually specify C93700, a general purpose bronze that offers low friction. It has good bearing qualities and can resist mildly corrosive acids, according to Austerberry.

C94500 is specified where lubrication may fail altogether; it contains 20% lead. Because it has a Brinell hardness of only 50, compared to 175 for high-strength C95400, it provides excellent conformity that corrects for minor misalignments.

Variety of Lubricants

Solid-cast bearings and bushings are often grooved by machining so can retain the lubricants needed at the surface bearing the load (See photo). The grooving varies depending on the shape of the bearing and the load conditions. Grooves are either circular, straight, looped, or in the shape of figure eights or double figure eights. The lubricants are either graphites pressed into the grooves under great pressure or mineral or petroleum-based oils flowing continuously. Graphite lubricants will usually last for the life of bearings.

When Sintered Is Superior

A variety of powders are compacted with bronze into sintered bearings, according to Dr. Vyacheslava Styskin, head metallurgist for the Wakefield Corporation, Wakefield, Massachusetts. There are even sintered bearings made entirely of iron. 'Although sintered iron bearings are stronger than all bronze bearings, the latter are superior for high-rotation-speed applications, such as in machine tools," according to Lee Sacks, general manager of Maryland Metrics, Baltimore. All the bearings from this vendor are made in metric rather than conventional sizes for manufacturers who export machinery or who use metric based machinery.

Sintered bearings don't require grooving because the lubricant is absorbed into the pores between the sintered groups of powder by vacuum impregnation or hours long immersion in hot oil. In general sintered bearings are used in lighter, shorter-product-life applications, such as desktop computer printers. Some sintered bearings are used dry in light-duty applications, according to Austerberry.

Lower-cost bimetal bearings with thin layers of bronze at the wearing surface are generally specified by cost-conscious engineers, such as those who design mass-produced items like auto engines, says Austerberry.

In Ball Bearings, Too

Low-friction ball and roller bearings with their many steel parts are more expensive than bronze bearings. Nevertheless, bronze plays an essential role in larger, heavy-duty ball or roller bearings; the retainer rings that hold the balls or rollers in position a-re made of bronze.

According to John Williamson, a salesperson with the Frank Tracy Company, New York, a major distributor of many brands of bearings, bronze is specified over steel for retainers because of its superior thermal characteristics in high heat environments.

National Bronze obtains its bronzes from a variety of sources, including Ampco, Bunting and Concast Metal Products. In addition to finished bearings, National Bronze also sells bar stock to a very small number of customers who make their own bearings.

High Strength Copper Alloys Boost Injection Molding

2008-08-19T12:45:00.001+05:30

Higher production rates are making copper alloys, which transfer heat rapidly, the materials of choice for many injection and blow molds for plastics. In molding, there's a major economic advantage to rapid removal of heat from the molten plastic: it raises production rates and reduces part defects. This more than compensates for the slightly higher cost of copper alloys - a difference likely to add no more than five percent to the total cost of the mold tool.

Besides cutting costs, high thermal-conductivity copper alloys offer these advantages in molding:

More uniform heating.
In some instances, tight dimensional specifications in large, complicated plastic parts can be achieved only if the parts are made in copper-alloy molds.
Improved esthetics because fewer "sink marks" and other defects are created. As a result, lower injection and pack pressures can be used, saving material.
Large plastic parts cast in copper-alloy molds exhibit much less warping; the excessive warping associated with parts made in steel molds can make it difficult to assemble large parts into systems.

In molding, copper alloys are replacing the commonly used mold steels, such as Type 420 stainless steel, because they have thermal conductivity three to nine times higher. Yet, the alloys are hard enough to meet the wear requirements of manufacturers aiming for high production rates of injection molded parts.

For instance, "high hardness copper beryllium, C17200, has a Rockwell hardness of C41, approaching that of steels. Wear resistance is often associated with hardness in the toolmakers' mind. Copper alloy have been shown to provide hundreds of thousands of production cycles.

Because wear resistance is more of a surface hardness phenomenon, a number of coating systems provide hard surfaces which extend the life of copper alloy molds - giving the best of both worlds: excellent heat transfer and good wear resistance.

The copper alloys, which include the nickel-silicon chromium-hardened high strength, high-conductivity alloy, C18000, developed by Ampco Metals, are commonly used in the creation of very large components by injection molding.

A copper be beryllium alloy used to make the molds for injection molding of the polypropylene bumpers for Renault in France was supplied by Brush Wellman, according to sales manager J. Scott Smyers. A number of U.S. suppliers are producing and stocking the copper berylliums and the C18000 alloy in both rod and heavy plate forms.

Molds often include a core to shape the parts and to speed cooling. Cast C82500 copper beryllium is an option for these cores. Sometimes, copper cores are used with steel molds, according to Truman Moore, president of TriCast Corporation, Crystal Lake, Illinois, which fabricates copper-alloy molds and their parts by a liquid casting process.

An industry task force under the auspices of the Copper Development Association has been introducing this array of advantageous alloys to the plastics industry for the past two years at trade shows, technical symposiums and at manufacturing sites throughout the U.S.

Wedges, lifters and slides are other required parts for molds. They are often made of aluminum bronze alloys C61900 and C62500. Pins and cores are often fabricated from nickel-silicon-hardened alloy, C64700.

Forms of Copper

2008-08-19T12:42:00.001+05:30

Copper is shipped to fabricators mainly as cathode, wire rod, billet, cake (slab), or ingot. Through extrusion, drawing, rolling, forging, melting, electrolysis, or atomization, fabricators can form wire, rod, tube, sheet, plate, strip, castings, powder, and other shapes. These copper and copper-alloys are then shipped to manufacturing plants that make products to meet society's needs.

Specific Properties of Copper

2008-08-19T12:41:00.003+05:30

• Chemical Symbol: Cu
• Atomic Number: 29
• Atomic Weight: 63.54
• Density: 8960 kg m(-3)
• Melting Point: 1356K
• Specific Heat at 293K: 0.383kJkg(-1)K(-1)
• Thermal Conductivity: 394W m(-1) K(-1)
• Electrical Conductivity (%International Annealed Copper Standard): 100%
• Electrical Resistivity: 1.673x10(-8) ohm-m
• Crystal Structure: Face Centered Cubic

Physical Properties of Copper

2008-08-19T12:41:00.001+05:30

• Malleable and Ductile
• Excellent Electrical Conductor
• Excellent Alloying Characteristics
• Non-Magnetic
• Essential Nutrient to Life
• Resistant to Corrosion
• Machinable
• Formable
• Excellent Heat Transfer Characteristics
• Durable
• Recyclable

BRASS NEUTRAL LINK / NEUTRAL BAR / CONNECTOR

2008-08-13T22:58:00.001+05:30

BRASS NEUTRAL LINK / NEUTRAL BAR / CONNECTOR

" Deepri.com "manufactures a vast range of terminal bars / neutral links and connectors
for the electrical industry. Besides the available standard sizes, we also manufacture as per the customers specifications.

BRASS NEUTRAL LINK / NEUTRAL BAR / CONNECTOR BRASS

CROSS SECTION (MM) CROSS HOLE
DIA PITCH THREAD PROD CODE

9*7 5.6 8.0 M5 AN 97

11*8 6.0 7.5 M5 AN 118

11*8 7.0 8.5 1/4" UNF AN 1188

12.7*8 7.0 8.5 1/4" UNF AN 1278

12.7*12.7 7.0 8.5 1/4" UNF AN 1212

the product is also known as
BRASS NEUTRAL LINK / NEUTRAL BAR /
CONNECTOR BRASS NEUTRAL LINK /
NEUTRAL BAR / CONNECTOR

Terminal block neutral bar earthing block terminal bar neutral link

Neutral link

2008-08-13T22:55:00.000+05:30

Neutral link it is the connection to the ground system. They are use to protect from overloading and short circuit.

Brass Inserts - Brass Neutral Links Neutral bars Earth bars Terminal blocks neutral blocks Manufacturer Moulding Inserts

2008-08-13T22:53:00.001+05:30

Neutral Bars Brass Neutral Links Neutral Bars Earth Bars TERMINAL BLOCKS ,BRASS TERMINALS ,BRASS TERMINAL BLOCKS,Brass Terminal Blocks, Earthing Blocks

Brass Inserts - Brass Neutral Links Neutral bars Earth bars Terminal blocks neutral blocks Manufacturer Moulding Inserts

Manufacturer and Exporter of all kinds of Brass Components

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Manufacturing Electrical Parts like Brass Neutral Bars, Earth Bars, Brass Terminal Blocks, Switch Gear Parts, Brass Neutral Links, Inserts

Brass Neutral Links Neutral Bars

2008-08-12T00:16:00.001+05:30

Brass Neutral Links Neutral Bars Manufacturer and exporter of brass neutral link. We offer brass neutral link made form high grade free cutting brass. We also manufacture brass neutral link as per customer's requirements.We Offer BRASS EARTH BARS NEUTRAL LINKS NEUTRAL BARS BLOCKS Neutral Links & Terminal Block Links Brass Neutral Links Neutral Bars Material Brass to BS 2874. Neutral Links Neutral Blocks Terminal Blocks & Terminal Block Links Brass Neutral Links Neutral Bars Sizes as per customers specifications. and Neutral Links as long as 1 meter can be provided Brass Neutral Links Neutral Bars Finish Natural Brass, Electro-Tinned or Nickel plated

Copper is malleable and ductile, a good conductor of heat and, when very pure, a good conductor of electricity.

2008-08-12T00:14:00.001+05:30

Copper is malleable and ductile, a good conductor of heat and, when very pure, a good conductor of electricity.

The purity of copper is expressed as 4N for 99.99% pure or 7N for 99.99999% pure. The numeral gives the number of nines after the decimal point when expressed as a decimal (e.g. 4N means 0.9999, or 99.99%). Copper is often too soft for its applications, so it is incorporated in numerous alloys. For example, brass is a copper-zinc alloy , and bronze is a copper-tin alloy.[27]

It is used extensively, in products such as:

Piping

    * including water supply.

Electronics

    * Copper wire.
    * Electromagnets.
    * Printed circuit boards.

--
Divyang A. Pandya

Electrical wiring accessories neutral links earth bar

2008-08-12T00:12:00.001+05:30

Electrical wiring in general refers to insulated conductors used to carry electricity, and associated devices. This article describes general aspects of electrical wiring as used to provide power in buildings and structures, commonly referred to as building wiring. This article is intended to describe common features of electrical wiring that should apply worldwide.

www.brasspartfittings.com

Copper

2008-08-12T00:03:00.001+05:30

Copper (pronounced /ˈkɒpɚ/) is a chemical element with the symbol Cu (Latin: cuprum) and atomic number 29. It is a ductile metal with excellent electrical conductivity and is rather supple in its pure state and has a pinkish luster which is (beside gold) unusual for metals which are normally silvery white. It finds use as a heat conductor, an electrical conductor, as a building material, and as a constituent of various metal alloys.

Copper is an essential trace nutrient to all high plants and animals. In animals, including humans, it is found primarily in the bloodstream, as a co-factor in various enzymes, and in copper-based pigments. However, in sufficient amounts, copper can be poisonous and even fatal to organisms.

Copper has played a significant part in the history of mankind, which has used the easily accessible uncompounded metal for thousands of years. Several early civilizations have early evidence of using copper. During the Roman Empire, copper was principally mined on Cyprus, hence the origin of the name of the metal as Cyprium, "metal of Cyprus", later shortened to Cuprum.

A number of countries, such as Chile and the United States, still have sizable reserves of the metal which are extracted through large open pit mines. However, like tin, there may be insufficient reserves to sustain current rates of consumption.^[1] High demand relative to supply has caused a price spike in the 2000s^[2].

Copper also has a significant presence as a decorative metal art. It can also be used as an anti-germ surface that can add to the anti-bacterial and antimicrobial features of buildings such as hospitals. ^[3]

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www.brasspartfittings.com

--
Divyang A. Pandya

Ottone neutro link Collegamenti elettrici accessori

2008-08-10T20:20:00.001+05:30

Ottone neutro link
Collegamenti elettrici accessori

Profonda riciclaggio

Produttore ed esportatore di ottone neutro link. Offriamo ottone neutro collegamento effettuato sotto forma di alto livello, libero di taglio ottone. Abbiamo anche la fabbricazione di ottone neutro link per cliente come requisiti
Fabbricato a partire da estrusi di ottone sezione di qualsiasi dimensione e lunghezza, forato, filettato, fornito come disegni o per campione, con la testa, Philips, viti, cavo fori di entrata countersunk, con / senza cavo titolare, placcati o finitura ottone con / senza bakelite / base in plastica. (2 Modi a 170 Modi)
Ottone nuovi articoli neutri Link http://www.deepri.com da circa Ottone Neutro Link, e rottami Importatore India. Noi non compromesso con le dimensioni e, di conseguenza, con la qualità. Usiamo forte mare degno di cartone ondulato con 7 strati / 9 strati. Stratificati con catrame rivestita con tessuto di Hesse, propriamente segnato la destinazione, lotto dimensione e numero di singoli cartone, che aiuta i nostri clienti per separare gli elementi, come mostrato in foto.

Materiale per Ottone Neutro Links:
Taglio libera Ottone E 319 Tipo (I) o
Taglio Ottone libera come da BS 249 Tipo (I) o
Di alto livello, libero di taglio ottone
Ottone qualsiasi speciale composizione materiale come requisito per i clienti



Disponibilità:
   Ottone neutro link sono disponibili come da specifiche.
Lunghezza / Dimensioni:
   Comincia da M2 o equivalente fili e fino a tutto il formato personalizzato di cui al disegno o requisito
Finitura e di rivestimento:


Naturale, Nickle placcato, Tin placcati o qualsiasi tipo di rivestimento come specifica per cliente

Copper Bonded Earthing Rod & Hot Dipped Galvanised Earthing Rod

2008-08-10T20:19:00.001+05:30

Copper Bonded Earthing Rod & Hot Dipped Galvanised Earthing Rod

9) BRASS TERMINAL BLOCK ( I & H OR CUSTOMISED AS PER DRAWING), TERMINAL CONNECTOR, AERIAL ROD, MULTIPLE POINT, TERMINAL BASE, B BOND, C TYPE CONNECTOR, CLAMP A TYPE FOR ROD DIA 12 MM, CLAMP B TYPE ROD TO TAPE, CLAMP C TYPE FOR ROD TO CABLE LUG, CLAMP C TYPE FOR ROD TO CABLE, CLAMP FOR CABLE WITH 2 BOLT, PARALLEL CLAMP WITH 2 BOLT, COUPLER, DCTAPE CLIP, EARTH PLATE 2 HOLE, EARTH PLATE 4 HOLE, JOINTING CLAMP, LUG WITH 2 BOLT, LUG U BOLT TYPE, OBLONG TEST CLAMP, POLE TYPE TERMINAL, RAIN WATER PIPE BOND, SCREW DOWN TEST CLAMP, SQUARE TAPE CLAMP

BRASS PART EXPORTER

2008-08-10T19:43:00.001+05:30

DEEP Recyclingindustrie
Hersteller und Exporteur von Messing-Komponenten
Brass Schaltgeräte Komponenten:
:: Brass Neutral Link (2 bis 150 Weise mit Messing und Mild Steel Schrauben)
:: Kontakt Brass Terminal
:: Brass' L 'Art Terminal
:: Brass' C 'type Terminal
:: Brass Rundschreiben Connecter
:: Brass Straight Knurling Terminal

Brass Schaltgeräte Komponenten, Messing neutral Link

Brass-Steckverbinder (1, 2 & 3):
:: Hergestellt in runde, quadratische, Halbkreis & Oval Shapes in mm, Zoll & BA-Threading mit Brass & Mild Steel Schrauben.
:: Breite Anwendung in Telekommunikation & Electrical Household Goods.
:: Alle Produkte mit Nickle, Zink Blau, Gelb und präskriptiven Brass Self Farbe plating.

Brass-Anschlüsse, Messing elektrische Schalter-Terminals, Messing Steckdose Terminals

Brass Electrical Switch Terminals (4 & 5):
:: Breite Anwendung in allen Arten von elektrischen, Flush & Surface, Appliance-Switches, Fused Connection Units, Socket Switches Board & Wetter Protected Zubehör.
:: Die Top-Kopf-Dreieck wunderschön gestaltet, eine reibungslose Bewegung von Switches

Brass Steckdose Terminals (6 bis 11):
:: Breite Anwendung in allen Arten von Elektro-Switch & Sockel stieg Bemessungsgrenze für die Abhaltung von Elektro-Kabel.
Perfekt als pro Kunden-Spezifikation mit Messing Schrauben.

WWW.DEEPRI.COM

Brass Neutral Links BRASS & COPPER ALLOY ELECTRICAL, CABLE, WIRING & EARTHING ACCESORIES, SPLIT BOLT

2008-08-10T19:35:00.001+05:30

Brass Neutral Links. Brass Battery Terminals - (Auto part). All type of fabricated precision oriented components as per your drawing in any metal. Apart from above we offer you Bi-metal cable Lugs, Copper / Lugs, Earthing Material etc.

BRASS TERMINAL BLOCK ( I & H OR CUSTOMISED AS PER DRAWING), TERMINAL CONNECTOR, AERIAL ROD, MULTIPLE POINT, TERMINAL BASE, B BOND, C TYPE CONNECTOR, CLAMP A TYPE FOR ROD DIA 12 MM, CLAMP B TYPE ROD TO TAPE, CLAMP C TYPE FOR ROD TO CABLE LUG, CLAMP C TYPE FOR ROD TO CABLE, CLAMP FOR CABLE WITH 2 BOLT, PARALLEL CLAMP WITH 2 BOLT, COUPLER, DCTAPE CLIP, EARTH PLATE 2 HOLE, EARTH PLATE 4 HOLE, JOINTING CLAMP, LUG WITH 2 BOLT, LUG U BOLT TYPE, OBLONG TEST CLAMP, POLE TYPE TERMINAL, RAIN WATER PIPE BOND, SCREW DOWN TEST CLAMP, SQUARE TAPE CLAMP, TAPE/ ROD.

POWER TRANMISSION / DISTRIBUTION PRODUCTS MANUFACTURED ARE SQUARE WASHERS, WIRE HOLDER PIPE MOUNTED, WIRE HOLDER, ASSEMBLY FOR WIRE HOLDER,
INSULATED CABLE SUPPORT STRAP, MOUNTING BRACKET FOR INSULATED CABLE. PLATE HOOK ETC & ANY TYPE OF ELECTRICAL / POWER SUPPLY CUSTOM MADE PRODUCT AS PER
DRAWINGS.

more detail go to www.brasspartfittings.com

brass neutral link

2008-08-10T19:09:00.001+05:30

Deep Recycling Industries

Manufacturer and exporter of brass neutral link. We offer brass neutral link made form high grade free cutting brass. We also manufacture brass neutral link as per customer's requirements
Manufactured from extruded Brass section of any size & length , Drilled , Threaded ,Tapped as per drawings or sample , with Philips head screws ,Cable entry holes countersunk , with / without cable holder , Plated or brass finish with / without bakelite / plastic base.{2 Ways to 170 Ways}
New Brass Neutral Link Articles from http://www.deepri.com about Brass Neutral Link, and Scrap Importer India. We do not compromise with the dimensions and hence with the quality. We use strong sea worthy corrugated cartons with 7 ply / 9 ply. Laminated with tar coated hessian cloth, properly marked the destination, lot size and number of individual carton, which helps our customer to separate the items, as shown in photograph.

Material for Brass Neutral Links:

Free Cutting Brass IS 319 Type (I) or
Free Cutting Brass as per BS 249 Type (I) or
High Grade Free Cutting Brass
Any Special Brass Material Composition as per customers requirement

Available:
	Brass neutral links are available as per specifications.
Length / Size:
	Begins from M2 or equivalent threads and up to any size as per custom design or requirement
Finish And Coating:
	Natural, Nickle Plated, Tin Plated or any coating as per customer specification

Strength of brass

2008-08-10T14:59:00.003+05:30

n the softened or annealed condition, the brasses are ductile and strong but when hardened by cold working techniques such as rolling or drawing, their strength increases markedly. Strong, stiff structures can be assembled from extruded-and-drawn sections. Bars and rolled sheet and plate can be fabricated into containers and other items of plant which work under pressure.

The strength of brasses is substantially retained at temperatures up to around 200^oC and reduces by only about 30% at 300^oC which compares favourably with many alternative materials.

The brasses are very suitable for use at cryogenic temperatures since the properties are retained or slightly improved under these operating conditions.

For applications demanding higher strengths the "high tensile brasses" are available. These contain additional alloying elements which further improve the properties.

Brass as cost effective

2008-08-10T14:59:00.001+05:30

There are many factors, sometimes overlooked, that contribute to low costs of brass components.

Close tolerance manufacturing techniques can be employed so that finishing costs are minimal.
Tooling costs may be significantly lower than for other materials or processes.
Ease of machining means that production costs can be minimised.
The good corrosion resistance of the brasses means that the cost of protective finishing is lower than for many other materials.
In addition to these benefits the high value of any process scrap can be used to reduce production costs significantly.
The long service life normally expected of well-designed brass components means that the costs of service failures are minimal.

Brass = Cu3Zn2, Copper zinc , color Yellow,

2008-08-09T10:11:00.001+05:30

Brass is naturally occurring crystals of a copper nickel alloy with a formula similar to what we know as brass. These specimens are also not common, but are extremely rare and have only been found in a couple of localities. Brass could be considered an official mineral if the naturally occurring crystals prove to have a unique structure and chemistry from other copper nickel alloys. That may prove difficult or impossible and if so, brass will then be discounted as a mineral.

Brass is classified as an element dispite the fact, that in chemical reality, it is a compound. Minerals like brass are alloys with metallic bonds that are very similar to the more pure metallic elements and are thus classified as elements.

PHYSICAL CHARACTERISTICS:

    * Color is yellow to brassy yellow.
    * Luster is metallic.
    * Transparency: Specimens are opaque.
    * Crystal System is isometric.
    * Crystal Habits are limited to tiny grains.
    * Cleavage is absent.
    * Specific Gravity is 8.4 - 8.7 (man-made brass)
    * Streak is brassy brown.
    * Notable Occurrences are limited to two localities in Siberia, Russia; Tolbachik Volcano, Kamchatka and Vol'sk-Vym Ridge, Middle Timan.
    * Best Field Indicator is color, locality, density and rarity.

Chemical Formula:	Cu3Zn2
Composition:	Molecular Weight = 321.42 gm
	Zinc 40.69 % Zn
	Copper 59.31 % Cu
	______
	100.00 %
Empirical Formula:	Cu₃Zn₂
IMA Status:	Not Approved IMA

Synonym:	Laiton
	Messing Brasspartfittings.com/blog

Manufacturer and exporter of all kind of brass components and fittings

2008-08-09T09:44:00.001+05:30

Manufacturer and Exporter of Fire Extinguisher, Cable Glands, Electrical Parts, Fasteners, Moulding Inserts, Brass Turned Parts, Smoking Parts, Surgical Parts, Agriculture & Spray Parts, we work very closely with some of the leading consumers and suppliers of Brass Fittings of the world using our expertise to improve performance with innovative, value added products. deep recycling industries

Moulding Inserts, Sanitary Parts, Fire Extinguisher, Cable Glands, E1w Cable Glands Bw Cable Glands, Flange Type Cable Glands, Cw4 Cable Glands, Bw2 Part Cable Glands, Wiping Cable Glands, Electrical parts, Electrical Switch Parts, Fasteners, Moulding Inserts, Sanitary Parts, Fasteners, Fasteners, Fasteners, Electrical parts, Fasteners.

T Gas Fittings, Jet Elbow, Compression Union, Valve, Force Barb, Nozzle, Gas Fitting, Gas Fittings Plug, Force Barb - T, Single Barb Elbow, Compressor Female Elbow, Compressor Male Brand -T

brasspartfittings.com/blog

Mfg & exporter of brass fittings

2008-08-06T00:12:00.001+05:30

Manufacturer & Exporters of Brass Fittings. loading.. Fasteners. Customer Specified Fittings. Customer Specified Fittings. CNC Turned Parts. Flare Fittings

brasspartfittings.com/blog

We manufacture wide range of brass components

2008-08-02T19:21:00.000+05:30

We manufacture wide range of brass components like brass cable glands, brass fasteners and brass inserts as per requirements.

Brass Part Worldwide

2008-07-31T11:48:00.000+05:30

brass lpg parts brass lpg components brass lpg products brass auto components europe brass auto products worldwide brass auto parts for industries

Brass = Cu3Zn2

2008-07-31T10:59:00.001+05:30

Cu₃Zn₂_{Brass is not an officially recognized mineral as yet, although it has been proposed. It is not the man-made brass that is under consideration, but specimens of naturally occurring crystals of a copper nickel alloy with a formula similar to what we know as brass. These specimens are also not common, but are extremely rare and have only been found in a couple of localities in Siberia, Russia. Brass could be considered an official mineral if the naturally occurring crystals prove to have a unique structure and chemistry from other copper nickel alloys. That may prove difficult or impossible and if so, brass will then be discounted as a mineral.

Brass is classified as an element dispite the fact, that in chemical reality, it is a compound. Minerals like brass are alloys with metallic bonds that are very similar to the more pure metallic elements and are thus classified as elements.

PHYSICAL CHARACTERISTICS:

    * Color is yellow to brassy yellow.
    * Luster is metallic.
    * Transparency: Specimens are opaque.
    * Crystal System is isometric.
    * Crystal Habits are limited to tiny grains.
    * Cleavage is absent.
    * Specific Gravity is 8.4 - 8.7 (man-made brass)
    * Streak is brassy brown.
    * Notable Occurrences are limited to two localities in Siberia, Russia; Tolbachik Volcano, Kamchatka and Vol'sk-Vym Ridge, Middle Timan.
    * Best Field Indicator is color, locality, density and rarity.}--
Divyang A. Pandya

Brass is an alloy of copper and zinc has unique and beneficial properties a wide range of engineering

2008-07-30T17:34:00.001+05:30

Brass Components

Brass is an alloy of copper and zinc that has unique and beneficial properties for a wide range of engineering and building applications.

Brass is often the first-choice material for electrical, precision, and general engineering equipment. It is usually specified for its strength, ductility, hardness, conductivity, machinability, wear resistance, color, and corrosion resistance. Its high ratings for machinability sets the standards by which other materials are judged. The addition of small amounts of lead further improves machinability.

The availability of brasses in precise shapes such as extrusions, hot stampings, drawn tubes, and die castings eliminates much of the machining costs required to produce finished components.

There are over 40 standard compositions for brass, with copper contents ranging from 58% to 95%. Small additions of other alloying elements are used to modify the properties of brass to meet specific applications.

Brass is the preferred material in many engineering and building applications for the following reasons:

- Brasses often offer better and longer service performance than other materials.

- Brasses have excellent resistance to corrosion. Outdoor exposure results in a thin protective green patina that is a visually attractive feature in buildings and other structures.

- Brasses have superior electrical and thermal conductivities to ferrous alloys, nickel alloys, and titanium. Their high conductivity combined with corrosion resistance makes them ideal for electrical equipment.

- The presence of lead in brass has a lubricating effect that provides low friction and low wear properties. This improves the functioning of clocks, gears, pinions, and plates. The addition of silicon in brass is ideal for resisting wear in heavy duty bearings.

- Since brasses do not spark when struck, they are common materials in hazardous environments.

- Brasses are readily joined to other copper alloys or to other metals by most commercial joining processes, such as riveting, soft soldering, silver brazing, and friction welding.

- Brasses exhibit excellent cryogenic properties.

- Brasses are ideal substrates for electroplating and painting.

- Brasses are highly recyclable. There is substantial demand for scrap , which is eventually recycled into refined brass and copper products.

- Brasses are frequently the cheapest material to select.

- Brasses can be easily cast to shape.

Copper and its alloys are present wherever industrial machinery and equipment are found

2008-07-30T17:30:00.001+05:30

Copper and its alloys are present wherever industrial machinery and equipment are found. Due to their durability, machinability, and ease of casting with high precision and tolerance, copper alloys are ideal for making products such as gears, bearings, and turbine blades.

Copper's superior heat transfer capabilities and ability to withstand extreme environments makes it an ideal choice for heat exchange equipment, pressure vessels, and vats.

In situations where explosions are feared, copper-alloyed safety tools, such as hammers, axes, pliers, and screwdrivers are typically specified. These tools are non sparking, high strength, non magnetic, and corrosion resistant.

The corrosion-resistant properties of copper and its alloys (e.g., brass, bronze, copper-nickel) make them especially suitable for use in demanding environments. Oil platforms, coastal power stations, and vessels, tanks, and piping exposed to seawater all depend on copper's corrosion resistance for protection.

Because of the versatility and excellent corrosion resistance of copper , they are specified in many engineering applications, including valves, pumps, heat exchangers, radiators, valve guides, hydraulic tubing, bolting, mining wagon brakes, and plastic molding inserts, dies.

www.deepri.com

Neutrallinks

2008-07-27T20:12:00.001+05:30

Neutral links

NEUTRAL LINKS

Manufactured in Natural / Tinned Brass, allows earth conductor termination, or live conductor termination with a suitable fully insulated housing.

www.deepri.com

Brass Electrical Components

2008-07-27T11:14:00.003+05:30

Whatever your requirements for Quality Precision Brass Components, Parts, Fittings. We offer the most reliable and Cost- effective solution "Deep Recycling Industries"

We are manufacturing all Kinds of Brass Electrical Components, Parts, and Fittings Like Electrical Plug Pins, Sockets Pins, Brass Neutral Links, Brass Terminal Block, Brass Connectors, Brass Earthing Accessories like Brass Dc Clip, Brass Earthing Clamp, Brass Couplers, Brass Earth Roads.We are manufacturing all Kinds of Brass Fasteners like Brass Screws, Washers, Nuts, Bolts, Pillars Screws. Any kind of Brass Fasteners can be developed and supplied exactly as per customer's Requirement & Specification

Any kind of Brass Electrical Components can be developed and supplied exactly as per customer's Requirement & Specifications.

Jamnagar News: Jamnagar Brass Parts Owners - Rising against Chinese tide

2008-07-25T09:36:00.000+05:30

Jamnagar News: Jamnagar Brass Parts Owners - Rising against Chinese tide

Brass Exporter

2008-07-24T10:28:00.000+05:30

A world class supplier of brass turned parts (automatic screw machine components) and sheet metal parts Manufacturers and Exporter of Brass Hardware, Building Hardware, Door Hardware, Brass Tower Bolts, hinges, Haldraff, Glass Bracket, Handles, Brass Gate Hook, window stay, Brass zula in India

Deep Recycling Industries

Brass Auto Parts

2008-07-24T10:26:00.001+05:30

Brass live is having a large number of automatic and semi-automatic machine, installed to manufacture a diverse and difficult range of brass auto parts. we offer various types of brass auto parts and battery terminals, forged battery terminal.

www.Brasslive.com

brass copper fittings

2008-07-22T11:53:00.001+05:30

COPPER FITTINGS BRASS BUSHES
BRASS PLUGS COPPER PIPE FITTINGS
COPPER COMPONENTS COPPER PARTS COPPER FITTINGS BRASS BUSHES

BRASS PLUGS COPPER PIPE FITTINGS

brass industries

2008-07-21T18:09:00.001+05:30

We welcome you to the world of BRASS INDUSTRIES. A company was formed in 1964, with a vision to produce Precision Turned Components
Deep recycling industries

test

2008-07-21T17:27:00.001+05:30

test

Copper Alloy Ingots

2008-07-21T08:45:00.001+05:30

Copper Alloy Ingots :

India's largest exporter of copper alloy ingots like gun metal, lead bronze, phosphor bronze, aluminum bronze, manganese bronze, silicon bronze, brass, high tensile brass, etc. for foundry applications to USA, Germany, UK, Australia, New Zealand, Japan & Taiwan

Our Products Brass Gun Metal Phosphor Bronze High Tensile Brass Aluminum Bronze Manganese Bronze Silicon Bronze Lead Bronze Bronze

Brass
Applications : Valves, cocks, plumbing fittings, marine fittings, pipe fittings, gas fittings, door & furniture fittings, hardware, electrical trade & ornamental castings, brush holders, switchgear brush holders, pump bodies, bolts, nuts, end plates for heat exchange equipment, small machine parts, flanges, imitation jewellery

Gun Metal
Applications : Pressure tight bearings, bushes, pumps, pump bodies, pump fittings, oil pumps, valves, valve bodies, steam valves, valve guides at normal temperatures under corrosive marine conditions, actuating nuts, hardware fittings, plumbing fixtures, elbows, pipes, taps, cocks, hydraulic fittings where pressure tight fittings are important, railway bearings, engine components, tractor parts, pressure components

Phosphor Bronze
Applications : Bearings for aero engines, diesel engines, electrical generators and rolling mills, gears, worn wheels, pressure vessels, pump body castings, impellers for chemical plants, bushes for lighter duties

High Tensile Brass
Applications : Marine castings & fittings, hydraulic equipment, locomotive axle boxes, pump castings, heavy rolling mill housing nuts, spur & gear, wheels which are heavily loaded and slow moving, components with high stress at normal temperatures

Aluminum Bronze
Applications : In marine engineering, and in petroleum, oil and chemical industries

Lead Bronze
Applications : Mining machinery bearings, corrosive marine conditions bearing, unlined bearings under poor lubrication conditions, mill bearings, railway bearings oil industry bearings, aero engine bearings for use at higher temperatures than white metal bushes for chill cast, centrifugally cast & continuously cast, linings for steel backed motors

Bronze
Applications : Bearings, castings for boiler mountings, water pressure fittings, grease & oil lubricated bearings (lined and unlined), motion bushes, bushes for heavy loads.

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High Tensile Brass CZ114 / CW721R

2008-07-20T17:18:00.001+05:30

Brasses are alloys of Copper and Zinc.
They may also contain small amounts
of other alloying elements to impart
advantageous properties. Brasses have
high corrosion resistance and high
tensile strength. They are also suited
to fabrication by hot forging. Free
machining grades of brass set the
standard for machining by which other
metals are compared.
Brasses are divided into two classes.
The alpha alloys, with less than 37%
Zinc, and the alpha/beta alloys with
37-45% zinc. Alpha alloys are ductile
and can be cold worked. Alpha/beta or
duplex alloys have limited cold ductility
and are harder and stronger. CZ114 /
CW721R is a duplex or alpha/beta
alloy.
Brass alloy CZ114 / CW721R is a
versatile high strength, hot workable,
machinable engineering alloy.

Copper alloy C106/CW024A

2008-07-20T17:16:00.001+05:30

Copper C101/CW004A

2008-07-20T17:15:00.001+05:30

It is believed that copper has been
mined for over 5000 years. It can be
found in elemental form and in the
minerals cuprite, malachite, azurite,
chalcopyrite and bornite. Copper is also
often found as a by-product of silver
production.
Next to silver, copper is the next best
conductor of electricity. It is a
yellowish red metal that can be
polished to a bright metallic lustre. It
is tough, ductile and malleable. Copper
has a disagreeable taste and a peculiar
smell.
Copper is resistant to corrosion in most
atmospheres including marine and
industrial environments. It is corroded
by oxidising acids, halogens, sulphides
and ammonia based solutions.
C101 / CW004A is the designation for
the 99.9% pure copper used in a range
of engineering applications.
C101 / CW004A is also known as HC or
high conductivity copper. It has a
nominal conductivity of 100% IACS
(International Annealed Copper
Standard). It also has high thermal
conductivity. This is therefore the
material of choice for use in conductors
and electrical components but not
when the service environment is a
reducing atmosphere.
High ductility and impact strength also
serve to make C101 / CW004A an
extremely useful material.
C101 / CW004A is also the base
material from which common brasses
and bronzes are produced.

Anode on Copper Plating

2008-07-20T17:06:00.001+05:30

Copper anodes in sulfate fluoborate baths usually become coated with
films containing finely divided copper and copper oxide particles. A
copper oxide film is believed to cause inter-granular corrosion, which
promotes disintegration of surface layer into the copper particles.
Some, however, have attributed the films to copper particles formed by
the disproportionation of copper (I) ion to copper (II) ion and metal.
The films on the anodes in the sulfate bath also contain insoluble
impurities such as arsenic, selenium, tellurium, lead, and silver.

Anode film particles often become detached from the anodes. Air
agitation promotes the detachment, causing some particles to be
dissolved by the free acid. If the work is racked so that cathode
shelves lie in a horizontal plane, particles will settle out on these
areas and roughen the plate. In such cases, the anode sludge can
sometimes be decreased and the deposits made smoother by raising the
bath temperature or increasing the acid concentration. In on series of
test, less copper was found in anode films formed in flouborate baths
than in those form sulfate baths.

Fine copper particles can be prevented from reaching the cathode by
bagging anodes with woven Dynel or polypropylene. To allow good mixing
of the solution adjacent to the anodes placed edgewise to the
cathodes.

Rolled and cast bars and electrolytic copper sheets have been employed
as anodes in sulfate and fluoborate baths. Anode sludge is decreased
by using oxygen-free, high conductivity copper. On the other hand, the
tenacity of the anode film is improved and the number of particles
that become detached from anodes surface in air agitated baths is
decreased by adding 0.02 to 0.04% phosphorous to cast copper. The
films on phosphorized copper anodes are responsible for the slight
polarization of about 0.5 V. Boiled copper anodes containing at least
0.004% phosphorous are customarily recommended by the vendors of
brighteners for plating bright copper in copper sulfate solutions.
Chunks of phosporized copper are frequently used in titanium anode
baskets.

Copper Painting

2008-07-15T16:05:00.005+05:30

In most instances Copper and Copper alloys
do not require painting. The inherent
properties of Copper resist corrosion and
biofouling. Painting of Copper is
occasionally done for aesthetic reasons. It
is also done to reduce the incidence of
metal to metal contact of bimetallic couples
where galvanic corrosion might be a
problem.
Before painting Copper, the surface of the
material should be roughened by grit or
sand blasting. Other specific procedures will
depend upon the type of paint being used.
Please consult the paint manufacturer for
details.

Copper Recycling

2008-07-15T16:05:00.003+05:30

Copper alloys are highly suited to recycling.
Around 40% of the annual consumption of
Copper alloys comes from recycled copper
materials. Both process scrap and the
component, at the end of its working life,
can be readily recycled.

Cleaning and Polishing Copper

2008-07-15T16:05:00.001+05:30

The best way to keep Copper clean is to not
allow it to get dirty in the first place.
Where possible, decorative items should be
kept clean and free of dust. Many
decorative copper items are coated with
lacquer to protect the finish. Other than
dusting, for these items occasional washing
with luke warm, soapy water may be
required. They should never be polished as
this may remove the protective lacquer.
To remove tarnish from Copper cookware,
simply rub with lemon halves dipped in salt.
Tarnish can be removed from Copper in
industrial applications using commercial
copper polishes. These polishes should be
applied following the manufacturers
instructions.
If a brushed finish is required on Copper or
copper alloys, stainless steel brushes must
be used to eliminate cross contamination.

Copper Finishing

2008-07-15T16:04:00.003+05:30

Copper components can be finished in a
vast variety of ways. The finish used for
any given Copper component is dependent
upon function and/or aesthetics. Copper
naturally forms a protective oxide layer on
exposure to the elements. This layer is
normally blue – green and may or may not
be desirable.
The blue – green patina develops over time
but its development can be enhanced and
accelerated by the use of commercially
available oxidising agents.
If the tarnished patina of Copper is not
desirable, the material can be protected
using a lacquer coating. An acrylic coating
with benzotriazole as an additive will last
several years under most outdoor,
abrasion-free conditions.

Copper Descaling

2008-07-15T16:04:00.001+05:30

The surface oxide films that form on Copper
alloys can prove to be quite tenacious.
Often these films need to be removed
before some fabrication processes can be
performed.
Very fine abrasive belts or discs can be
used to remove oxides and discolouration
adjacent to welds.
Pickling might be necessary by using a hot
5-10% sulphuric acid solution containing
0.35g/l potassium dichromate. Before
commencing pickling, oxides can be broken
up by a grit blast. Components that have
been pickled should be rinsed thoroughly in
hot, fresh water and finally dried in hot air.
􀁘

Copper Casting

2008-07-15T16:03:00.001+05:30

Copper and many Copper alloys are ideally
suited to fabrication of components by
casting.
The most flexible casting technique utilises
sand moulds. Sand moulds can be used for
production runs from simple one-off items
to long casting runs. These items can also
range in size from a few grams to many
tonnes.
The other popular casting technique uses
iron moulds and is called die casting. Die
casting is suited to long casting runs.
Both die casting and sand casting can be
used for the low cost production complex
near net-shape components. This minimises
expensive post casting machining.
Bars, sections and hollows that require tight
dimensional control are often produced by
continuous casting.
Rings, discs and other symmetrical shapes
tend to be produced using centrifugal
casting.

Copper Machining

2008-07-15T16:02:00.003+05:30

All Coppers and Copper alloys can be
machined accurately, cheaply, with a good
tolerance standard and good surface finish.
Some Copper alloys are specifically
formulated to have excellent machinability.
If machinability is the paramount
consideration for the material, the material
of choice is high speed machining brass.
The relative machinability of metals is
demonstrated by a percentage rating. This
rating system is based on the original free
machining brass (CZ121 / CW614N) which
has a rating of 100.

Copper Bolting and Riveting

2008-07-15T16:02:00.001+05:30

Copper and all Copper alloys can be
successfully bolted or riveted. However
consideration must be given to the material
used in the bolts or rivets. As Copper is
often chosen for its corrosion resistance,
the material used in the bolts and rivets
should be made from the same or similar
material to that being joined.
For roofing applications, Copper nails are
preferred but brass or stainless steel can be
substituted.
Mechanical joining like bolting and riveting
may induce localised areas of high stress,
which could induce failure in the
component. Replacing the mechanical joint
with adhesive bonding can eliminate this.
Adhesive bonding can also be used in
conjunction with mechanical bonding.

Copper Welding

2008-07-15T16:01:00.003+05:30

Copper alloys are readily welded using all
common welding techniques including:
􀂋 Arc welding
􀂋 Gas-shielded arc welding
􀂋 Tungsten inert gas (TIG) welding
􀂋 Metal inert gas (MIG) welding
􀂋 Plasma arc welding
􀂋 Pulsed-current MIG welding
􀂋 Electron Beam welding
􀂋 Laser welding
􀂋 Friction welding
􀂋 Ultrasonic welding

Copper brazing

2008-07-15T16:01:00.001+05:30

With the exception of alloys containing
more than around 10 per cent Aluminium or
3 per cent Lead, brazing can be used to join
all Copper alloys.
Brazing is particularly popular for joining
Copper components used in building,
heating, ventilation, air-conditioning and
the manufacturing of electronic products

Copper Tube and Pipe Bending

2008-07-15T16:00:00.003+05:30

Most Copper pipe/ tube can be readily bent
and two main methods are employed. The
first uses bending springs and the second, a
pipe bending machine.
The simplest tool for bending pipe is the
bending spring. Bending springs are
normally used for thinner walls where the
pipe can be bent by hand. Two types of
spring are used: internal and external. Both
types of spring serve the same function; to
prevent the wall of the pipe from collapsing
during bending.
External springs are used for smaller
diameter copper piping (6 to 10mm
external diameter). As the name suggests,
the spring is fitted over the tube during the
bending operation. Internal springs are
placed inside the pipe during bending.
Each pipe size requires its own specific size
of spring.
All bending machines are different but the
principal is the same.
The bending machine is fitted with a
bending roller and former matched to the
size of the pipe. The pipe is secured at one
end and the lever handle of the machine
moved to bend the pipe around the former.

Copper Soldering

2008-07-15T16:00:00.001+05:30

Soldering can be divided into two methods:
􀂋 Soft soldering using alloys that melt
below 350°C
􀂋 Hard soldering using stronger, high
melting point alloys
In regard to soldering Copper alloys, hard
soldering is often referred to as Silver
soldering.
Soft soldering normally uses Tin based
solders for joining Copper and brass when
high mechanical strength is not required.
The method is commonly used for joining
Copper in domes

Joining of Copper Components

2008-07-15T15:59:00.003+05:30

Copper and Copper alloys are more readily
joined than most other materials used in
engineering.
Although 90% of Copper based components
are assembled using conventional welding
and brazing techniques, they can be
successfully joined using every known
joining process.
When welding, soldering or brazing Copper
the joint must be clean and free of dirt,
grease or paint.

Copper Bar and Flat Bending

2008-07-15T15:59:00.001+05:30

Copper and Copper alloy bar can be bent
using standard bending methods.
As a general rule, the minimum bending
radius for copper bar is equal to the
thickness of the bar.

Cutting Copper Sheet and Plate

2008-07-15T15:58:00.003+05:30

The method employed for cutting Copper
sheet or plate largely depends on two
factors; the thickness of the material and
the amount of cutting required.
For thin gauge material where only a
minimal amount of cutting is to be done, tin
snips or hand shears may be adequate.
Thicker material can be cut using a
bandsaw or other mechanical saw fitted
with a bimetallic blade suited to the cutting
of Copper alloys. For large cutting runs or
for thick material it may be necessary to
utilise one of the common industrial cutting
methods like:
􀂋 Shearing
􀂋 Electrical discharge machining (EDM)
􀂋 Laser cutting
􀂋 Water jet cutting
􀂋 Plasma cutting
􀂋 Slitting
􀂋 Guillotining
􀂋 Abrasive disc cutting

Copper Pipe and Tube Cutting

2008-07-15T15:58:00.001+05:30

When cutting Copper pipe, a fine toothed
hacksaw may be used quite successfully. To
ensure the cut is square to the pipe, a tube
cutter should be used.
When a pipe cutter is used, it is
recommended to grip the Copper tubing
with a pipe vice or a similar holding device.
To hold material for cutting with a hacksaw
use a mitre box or a jig consisting of a
piece of wood containing a notch to hold
the tube or pipe in place.
After cutting any burrs need to be removed
from the inside and outside of the tube. For
this, use a half round file. Pipe cutters tend
to cause more burrs than do hacksaws.

Copper Cutting

2008-07-15T15:57:00.003+05:30

Most Copper alloys are relatively soft and
can be readily cut using common hand tools
and standard cutting methods.
While the relative softness of Copper makes
it easy to cut, it is important to protect the
component from unwanted damage during
cutting. This damage may include, but not
be limited to, bending, denting or
scratching.

Handling and Storage

2008-07-15T15:57:00.001+05:30

The procedures for the handling and
storage of Copper and Copper alloys are
very similar to those used for Aluminium
and stainless steel.
The most important factor is cleanliness.
Contaminated Copper can be the cause of
cracking or porosity during heat treatment
or welding. Corrosion resistance can also be
adversely affected. Tooling and work
surfaces should be dedicated to use with
Copper materials or thoroughly cleaned
before use. If this is rule is not adhered to,
cross contamination can occur.
Copper sheets should remain in their
packaging until required and should be kept
separated by protective material to avoid
abrasion between the sheets.
Plates and sheets should be stored
vertically in covered racks. All Copper
materials should never be walked upon.

Copper Ductility and Malleability

2008-07-15T15:56:00.003+05:30

The ductility and malleability of Copper and
Copper alloys makes them ideally suited to
fabrication methods that involve severe
deformation such as:
􀂋 Tube forming
􀂋 Wire drawing
􀂋 Spinning
􀂋 Roll forming
􀂋 Deep drawing
These fabrication methods require
specialised, heavy equipment and skilled
operators. If fabrication by one of these
methods is required, more information
should be sought independently.

Copper fabrication

2008-07-15T15:56:00.001+05:30

Copper and Copper alloys are amongst
the most versatile materials available
and are used for applications in every
type of industry. World consumption of
Copper now exceeds 18 million tonnes
per annum.
Copper is well known for it's
conductivity but it has other properties
that have been exploited in a wide
range of copper alloys. These alloys
have been developed for a wide variety
of applications and numerous
fabrication processes employed to
produce finished goods.
Fabrication techniques that copper
alloys are largely suited to include
machining, forming, stamping, joining,
polishing and plating.
The exceptional machinability of some
Copper alloys means that free
machining brass sets the standard of
machinability by which all other metals
are judged.

Brasses

2008-07-13T11:25:00.001+05:30

Brasses contain Zinc as the principal
alloying element.
Other alloying elements may also be
present to impart advantageous properties.
These elements include Iron, Aluminium,
Nickel and Silicon.
Brasses are most commonly characterised
by their free machining grades by which
machining standards are set for all other
metals.
Brasses can also have high corrosion
resistance and high tensile strength. Some
brasses are also suited to hot forging.

Bronze Families

2008-07-13T11:24:00.003+05:30

The wrought bronze alloy families are:
􀂋 Copper-Tin-Phosphorus alloys (Phosphor
Bronzes)
􀂋 Copper-Tin-Lead-Phosphorus alloys
(Leaded Phosphor Bronzes)
􀂋 Copper-Aluminium alloys (Aluminium
Bronzes)
􀂋 Copper-Silicon alloys (Silicon Bronzes)
The cast bronze alloy families are:
􀂋 Copper-Tin alloys (Tin Bronzes)
􀂋 Copper-Tin-Lead alloys (Leaded and
high leaded Tin Bronzes)
􀂋 Copper-Tin-Nickel alloys (nickel-tin
bronzes)
􀂋 Copper-Aluminium alloys (Aluminium
Bronzes)

Brass Families

2008-07-13T11:24:00.001+05:30

There are three main families of wrought
alloy brasses:
􀂋 Copper-Zinc alloys
􀂋 Copper-Zinc-Lead alloys (Leaded
brasses)
􀂋 Copper-Zinc-Tin alloys (Tin brasses)
Cast brass alloys can be broken into four
main families:
􀂋 Copper-Tin-Zinc alloys
􀂋 Manganese Bronze (high strength
brasses) and Leaded Manganese Bronze
(high tensile brasses)
􀂋 Copper-Zinc-Silicon alloys (Silicon
brasses and bronzes)
􀂋 Cast Copper-Bismuth and Copper-
Bismuth-Selenium alloys.

Copper Alloy Families

2008-07-13T11:23:00.001+05:30

Within the wrought and cast categories for
Copper alloys, the compositions can be
divided into the following main families:
􀂋 Pure Coppers
􀂋 High Copper Alloys
􀂋 Brasses
􀂋 Bronzes

Copper Electrical Conductivity

2008-07-13T11:22:00.001+05:30

The electrical conductivity of copper is
second only to silver. The conductivity of
copper is 97% that of silver. Due to its
much lower cost and greater abundance,
copper has traditionally been the standard
material used for electricity transmission
applications.
However, weight considerations mean that
a large proportion of overhead high voltage
power lines now use aluminium rather than
copper. By weight, the conductivity of
aluminium is around twice that of copper.
The aluminium alloys used do have a low
strength and need to be reinforced with a
galvanised or aluminium coated high tensile
steel wire in each strand.
Although additions of other elements will
improve properties like strength, there will
be some loss in electrical conductivity. As
an example a 1% addition of cadmium can
increase strength by 50%. However, this
will result in a corresponding decrease in
electrical conductivity of 15%.

Surface Oxidation of Copper

2008-07-13T11:21:00.003+05:30

Most Copper alloys will develop a bluegreen
patina when exposed to the elements
outdoors. Typical of this is the colour of the
Copper Statue of Liberty in New York. Some
Copper alloys will darken after prolonged
exposure to the elements and take on a
brown to black colour.
Lacquer coatings can be used to protect the
surface and retain the original alloy colour.
An acrylic coating with benzotriazole as an
additive will last several years under most
outdoor, abrasion-free conditions.

Copper as Corrosion Resistance

2008-07-13T11:21:00.001+05:30

All Copper alloys resist corrosion by fresh
water and steam. In most rural, marine and
industrial atmospheres Copper alloys also
resistant to corrosion. Copper is resistant to
saline solutions, soils, non-oxidising
minerals, organic acids and caustic
solutions. Moist ammonia, halogens,
sulphides, solutions containing ammonia
ions and oxidising acids, like nitric acid, will
attack Copper. Copper alloys also have poor
resistance to inorganic acids.
The corrosion resistance of Copper alloys
comes from the formation of adherent films
on the material surface. These films are
relatively impervious to corrosion therefore
protecting the base metal from further
attack.
Copper Nickel alloys, Aluminium Brass, and
Aluminium Bronzes demonstrate superior
resistance to saltwater corrosion.

Key properties of Copper Alloys

2008-07-13T11:20:00.001+05:30

Copper is a tough, ductile and malleable
material. These properties make copper
extremely suitable for tube forming, wire
drawing, spinning and deep drawing. The
other key properties exhibited by copper
and its alloys include:
􀂋 Excellent heat conductivity
􀂋 Excellent electrical conductivity
􀂋 Good corrosion resistance
􀂋 Good biofouling resistance
􀂋 Good machinability
􀂋 Retention of mechanical and electrical
properties at cryogenic temperatures
􀂋 Non-magnetic

Other Properties :
􀂋 Copper and Copper alloys have a
peculiar smell and disagreeable taste.
These may be transferred by contact
and therefore Copper should be kept
clear of foodstuffs.
􀂋 Most commercially used metals have a
metallic white colour. Copper is a
yellowish red.

Copper Structure

2008-07-13T11:19:00.003+05:30

Copper has a face centred cubic crystal
structure. It is yellowish red in physical
appearance and when polished develops a
bright metallic lustre.

Copper Applications

2008-07-13T11:19:00.001+05:30

Copper and copper alloys can be used in an
extraordinary range of applications. Some
of these applications include:
􀂋 Power transmission lines
􀂋 Architectural applications
􀂋 Cooking utensils
􀂋 Spark plugs
􀂋 Electrical wiring, cables and busbars
􀂋 High conductivity wires
􀂋 Electrodes
􀂋 Heat exchangers
􀂋 Refrigeration tubing
􀂋 Plumbing
􀂋 Water-cooled copper crucibles

Copper Introduction

2008-07-13T11:18:00.001+05:30

Copper is the oldest metal used by
man. It's use dates back to prehistoric
times. Copper has been mined for more
than 10,000 years with a Copper
pendant found in current day Iraq
being dated to 8700BC. By 5000BC
Copper was being smelted from simple
Copper Oxides.

Copper is found as native metal and in
minerals cuprite, malachite, azurite,
chalcopyrite and bornite. It is also
often a by-product of silver production.
Sulphides, oxides and carbonates are
the most important ores.

Copper and Copper alloys are some of
the most versatile engineering
materials available. The combination of
physical properties such as strength,
conductivity, corrosion resistance,
machinability and ductility make
copper suitable for a wide range of
applications. These properties can be
further enhanced with variations in
composition and manufacturing
methods.

The largest end use for Copper is in the
building industry. Within the building
industry the use of copper based
materials is broad. Construction
industry related applications for copper
include:
􀂋 Roofing
􀂋 Cladding
􀂋 Rainwater systems
􀂋 Heating systems
􀂋 Water pipes and fittings
􀂋 Oil and gas lines
􀂋 Electrical wiring

The building industry is the largest
single consumer of copper alloys. The
following list is a breakdown of copper
consumption by industry on an annual
basis:
􀂋 Building industry – 47%
􀂋 Electronic products - 23%
􀂋 Transportation - 10%
􀂋 Consumer products - 11%
􀂋 Industrial machinery - 9%

There are around 370 commercial
compositions for copper alloys. The
most common grade tends to be C106/
CW024A - the standard water tube
grade of copper.
World consumption of copper and
copper alloys now exceeds 18 million
tonnes per annum.

Copper Melting Point

2008-07-13T11:14:00.001+05:30

The melting point for pure copper is
1083ºC

Copper Yeild Strength

2008-07-13T11:13:00.001+05:30

The yield point for Copper alloys is not sharply defined. As a result
it tends to be reported as either a 0.5% extension under load or as
0.2% offset.

Most commonly the 0.5% extension yield strength of annealed material
registers as approximately one-third the tensile strength. Hardening
by cold working means
the material becomes less ductile, and yield strength approaches the
tensile strength.

Brass Inserts

2008-07-13T09:53:00.001+05:30

Brass inserts are designed with various knurl to provide a high
torque-pull out resistance for threaded assembly in plastic. They also
carry a strong metal thread to strengthen the plastic components for
assembly.

Method of installation: Ultra-sonic, thermal & moulded-in.
Typical application: Telecommunication, instrument, electronics &
other plastic cases assembly.

1. Brass inserts
Further the round inserts, hexagonal inserts and square inserts are
also available. The inserts are available with diamond, straight or
unidirectional knurling.

2. Brass inserts - customise
Any kind of special brass insert can be developed and supplied exactly
as per customer specifications. Knurling inserts (round inserts /
hexagonal inserts / square inserts).

3. Brass insert - thread
ISO metric (MM threads).
BA threads.
BSW threads (inches).
UNC, UNF threads.
Any threads as per custom design.

4. Brass inserts knurling available - Diamond / straight / unidirectional.

www.brasscomponentsfasteners.com

What are Monel valves?

2008-07-12T10:46:00.001+05:30

Monel is a nickel-copper and zinc alloy that was patented in 1906. Its considered a 'natural alloy' since it can be produced by refining ore containing nickel and copper in the ratio it is found in the natural nickel-copper ore.

Monel is more expensive than stainless steel and highly resistant to corrosion. Its popular in marine applications, eyeglass frames, and musical instruments.

There's an excellent story of monel entitled 'A Century of Monel Metal: 1906-2006′, which contains this account:

www.brassbilletsrods.com

Brass Electrical Parts

2008-07-11T18:48:00.001+05:30

Since the neutral point of an electrical supply system is often connected to earth ground, ground and neutral are closely related. Under certain conditions, a conductor used to connect to a system neutral is also used for grounding (earthing) of equipment and structures. Current carried on a grounding conductor can result in objectionable or dangerous voltages appearing on equipment enclosures, so the installation of ground (earth) conductors and neutral conductors is carefully distinguished in electrical regulations. Where a neutral conductor is used also to connect equipment enclosures to earth, care must be taken that the neutral conductor never rises to a high voltage with respect to local ground.

www.brasselectricalparts.com

BRASS INSTRUMENTS

2008-07-11T18:43:00.001+05:30

Brass instruments are made of a lacquered or plated metal. Traditionally the instruments are normally made of brass, polished and then lacquered to prevent corrosion. Some higher quality and higher cost instruments use gold or silver plating to prevent corrosion. A few specialty instruments are made from wood.

Alternatives to brass include other alloys containing significant amounts of copper or silver. These alloys are biostatic due to the oligodynamic effect, and thus suppress growth of molds, fungi or bacteria. Brass instruments constructed from stainless steel or aluminum have good sound quality but are rapidly colonized by microorganisms and become unpleasant to play.

Brasspart.net

brass instruments

2008-07-11T18:33:00.001+05:30

Natural brass instruments, where the player can only play notes in the instrument's harmonic series, for example the bugle. The trumpet was a natural brass instrument prior to about 1795, and the horn before about 1820. Natural instruments are still played for some ceremonial functions, as well as period performances.

www.deepri.com

type of brass

2008-07-11T18:29:00.001+05:30

Brass types

    * Admiralty brass contains 30% zinc and 1% tin which inhibits dezincification in most environments.
    * Alpha brasses (Prince's metal), with less than 35% zinc, are malleable, can be worked cold, and are used in pressing, forging, or similar applications. They contain only one phase, with face-centered cubic crystal structure.
    * Alpha-beta brass (Muntz metal), also called duplex brass, is 35-45% zinc and is suited for hot working. It contains both α and β' phase; the β'-phase is body-centered cubic and is harder and stronger than α. Alpha-beta brasses are usually worked hot.
    * Aluminium brass contains aluminium, which improves its corrosion resistance. Used in Euro coins (Nordic gold).
    * Arsenical brass contains an addition of arsenic and frequently aluminium and is used for boiler fireboxes.
    * Beta brasses, with 45-50% zinc content, can only be worked hot, and are harder, stronger, and suitable for casting.
    * Cartridge brass is a 30% zinc brass with good cold working properties.
    * Common brass, or rivet brass, is a 37% zinc brass, cheap and standard for cold working.
    * DZR brass is Dezincification resistant Brass with a small percentage of Arsenic.
    * Gilding metal is the softest type of brass commonly available. An alloy of 95% copper and 5% zinc, gilding metal is typically used for ammunition components.
    * High brass, contains 65% copper and 35% zinc, has a high tensile strength and is used for springs, screws, rivets.
    * Leaded brass is an alpha-beta brass with an addition of lead. It has excellent machinability.
    * Low brass is a copper-zinc alloy containing 20% zinc with a light golden color, excellent ductility and is used for flexible metal hoses and metal bellows.
    * Naval brass, similar to admiralty brass, is a 40% zinc brass and 1% tin.
    * Red brass, while not technically brass, is an American term for CuZnSn alloy known as gunmetal.
    * White brass contains more than 50% zinc and is too brittle for general use.
    * Yellow brass is an American term for 33% zinc brass.

www.deepri.com

Brass Neutral Links

2008-06-16T18:50:00.002+05:30

Manufactured from extruded Brass section of any size & length , Drilled , Threaded ,Tapped as per drawings or sample , with Philips head screws ,Cable entry holes countersunk , with / without cable holder , Plated or brass finish with / without bakelite / plastic base.{2 Ways to 170 Ways}

Densities of popular metals

2008-06-16T09:50:00.003+05:30

Metal Density (Lbs/Cubic Inch)

Aluminum = 0.0975
Ampco Metal = 0.274
SAE660 bearing Bronze = 0.318
Brass = 0.308
Copper = 0.323
Cupro Nickel = 0.323
Gold = 0.697
Iron = 0.284
Lead = 0.41
Magnesium = 0.061
Manganese = 0.267
Muntz Metal = 0.308
Naval brass = 0.304
Nickel = 0.322
Platinum = 0.775
Silver = 0.378
Stainless steel = 0.2871
Steel = 0.284
Tin = 0.284
Tobin Bronze = 0.304
Zinc = 0.258

ALUMINUM BRONZE

2008-06-09T12:22:00.000+05:30

Foundry practice for aluminum bronze must be carefully controlled. The elimination of oxide inclusions is one of the principal problems. Agitation of the metal, whether in the furnace or during casting, can lead to serious results.
It is important to design the gating so that the metal enters and fills the mold cavity without turbulence. Gaes and runners should be wide and thin to help the alloy skim itself before entering the .mold. Pouring must be conducted so that the metal rises very slowly in the mold.
After the casting is poured, slow cooling should be avoided or "self-annealing", a. type of casting embrittlement found in low iron-aluminum-copper alloys, may take place. Castings should be removed from the mold as soon as they are solid enough to handle without distortion.If the casting
are large, it may help to spray them with water after they have been removed from the sand. Chilled castings usually cool rapidly enough so that no additional cooling is necessary. If no other method is available, self-annealing effect.,> may be overcome by heat treating the castings, or by using an a110y with higher iron and nickel content. Aluminum bronzes with 4% iron or high nickel content are less subject to "self-annealing".
Although aluminum bronze is usually thought to have a high solidification shrinkage, experimental data show that shrinkage is considerably less than for most copper-base casting alloys. The apparent shriI1kage problem is probably associated with the very narrow solidification range, which
gives the metal similar freezing characteristics to pure metal. As a result, piping is a problem and large, carefully placed risers are frequently necessary.

MANGANESE BRONZE

2008-06-09T12:20:00.002+05:30

In melting manganese bronze, it is essential to maintain careful control of the chemical composition, especially of the copper and zinc content. The practice of "flaring" or heating manganese bronze until the zinc distills off, is of questionable "alue and may cause indeterminate zinc losses
which, in turn, will change mechanical properties of the alloy. Heat the metal only to the temperature
needed to pour sound castings.
Due to the dross-fanning tendencies of manganese bronze, gating should be such that there is a minimum of turbulence when the metal enters the mold. Top or bottom gating may be used, and strainer cores, choke gates and dross traps can be applied effectively to produce clean and sound castings. Gates and runners should be wide and thin so that the metal may skim itself before entering the mold cavity. The sprue should be filled quickly and kept full.
Manganese bronze has a high solidification shrinkage and large risers must be used so that all parts of the casting are adequately fed. Chills can be advantageously used to reduce the size and number of risers. Insulating sleeves and hot-topping compounds help in making risers feed more efficiently or in reducing riser size.