Phosphor bronze wrought

Tin Bronzes. Tin bronzes may be the most familiar of copper alloys with roots going back into ancient times. Whereas bronze is stiU used for statuary, these alloys are found in many modem appHcations, such as electrical connectors, bearings, beUows, and diaphragms. The wrought tin bronzes are also called phosphor bronzes because 0.03 to 0.35 wt % phosphoms is commonly added for deoxidation and improved melt fluidity. 

Tin-bronzes and gunmetals Alloys containing 3-0-12-5% Sn and 0-02-0-04% P, known as phosphor-bronzes, are widely employed. Cast as well as wrought alloys are used, and cast leaded bronzes are also available. 

These alloys are available as wrought or cast alloys. The principal wrought copper alloys are the brasses, leaded brasses, phosphor bronzes, aluminum bronzes, silicon bronzes, bciylhum coppers, cupronickels. and nickel silvers. The major cast copper alloys include the red and yellow brasses, manganese, tin, aluminum, and silicon bronzes, beryllium coppers, and nickel silvers. The chemical compositions range widely. For example, a leaded brass will contain 60% copper, 36 to 40% zinc, and lead up to 4% a beryllium copper is nearly all copper, containing 2.1% beryllium, 0.5% cobalt, or nickel, or in another formulation, 0.65% beryllium, and 2.5% cobalt. 

Alloys. Tin is widely used as both a major and minor ingredient of alloy metals. These applications are summarized in Tables 1, 2, and 3. Phosphor bronzes (Table 3) actually contain very little phosphorus, ranging from 0.03 to 0.50%, and hence the alloys are poorly designated. Tin bronzes is the better term. High-silicon bronzes contain about 2.8% tin low-silicon bronzes about 2.0% tin. Gun metals are tin bronze casting alloys with a 5 10% zinc content. Some wrought copper-base alloys contain tin (1) Inhibited Admiralty metal, 1% fin (2) manganese bronze, 1% tin (3) naval brass, 0.75% tin, (4) leaded naval brass, 0.75% tin. See also Copper. 

Phosphor bronze is available in a wrought condition as sheet, strip, plate, rod, bar, wire and tube and also as cast materials. 

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