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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