Copper Yeild Strength

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

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.

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What are Monel valves?

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:

On January 30, 1906, U.S. patent 811,239 was issued to Ambrose Monell, then president of the three-year old Inco, for "a new and useful improvement in the manufacture-of nickel-copper alloys." As is stated in the Monell patent, the process included smelting, "bessemerization," calcining, and oxide reduction.While Browne's plan to make German silver from the nickel/copper alloy was indeed possible, it was determined that the resulting alloy of about 70% nickel and 30% copper-the natural ratio of those elements in the matte ore-had some quite interesting properties as produced. The new alloy was silvery white, brighter than nickel, stronger than steel, and more resistant to corrosion in saltwater and sulfuric acid than bronze. In honor of the company's president, the product was named "Monel" metal.  www.brassbilletsrods.com

Brass Electrical Parts

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.

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BRASS INSTRUMENTS

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.


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brass instruments

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.

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type of brass

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.


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