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Copper, brass and bronze alloys are non-ferrous metals with excellent electrical and thermal conductivity as well as good corrosion resistance, ductility and strength. Pure copper (Cu) is an unalloyed metallic element. Low alloy copper contains very small amounts of alloying elements such as aluminum and titanium. Brass, bronze, leaded brass, nickel silver, copper nickel, aluminum bronze, tin bronze and silicon bronze are examples of copper alloys. Many copper, brass and bronze alloys are hardened or strengthened with cold working processes, solution treating, precipitation hardening, or spinodal decomposition. These materials are easy to fabricate and available in a variety of finished, semi-finished, and hollow stock shapes. Examples include anodes, billets, blooms, coils, flats, foils, ingots, nuggets, plates, powders, sheets, shims, slabs, strips, and wires. Square, rectangular, hexagonal, spherical and tubular products are also available. Important specifications for copper, brass and bronze alloys include outside width or outer diameter (OD), overlength, overall thickness, and inner diameter (ID).   

There are two basic types of copper, brass and bronze alloys: cast alloys and wrought alloys. Cast alloys are melted and then cast continuously, centrifugally, or statically into a mold. Wrought alloys are deformed mechanically during manufacturing in rolling, extrusion, or forging processes. Copper, brass and bronze alloys can also be fabricated through the pressing and sintering of copper powders. Often, materials such as lead, tellurium or other additives are used to improve chip breaking, which imparts free machining characteristics. Composite or reinforced materials with a matrix or continuous phase are also available. Typically, these products are reinforced with a secondary component in particulate, chopped fiber, continuous filament or fabric form.

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Products & Services Related to Copper, Brass and Bronze Alloys
Carbon Steels and Alloy Steels
Carbon steels and alloy steels are ferrous alloys that contain carbon and other alloying elements such as manganese, chromium, molybdenum, and nickel.
Metal Balls
Metal balls and spherical shapes are used as check or ball valves, bearings, or other applications. Metal bearing balls are precision ground for ball bearings or other motion systems.
Metal Foils and Foil Stock
Metal foils and foil stock are very thin, metal-mill products with a thickness that is usually less than 0.006 in.
Refractory and Reactive Metals
Reactive and refractory metals include tungsten, molybdenum, niobium, tantalum, chromium, hafnium, zirconium, and titanium. Reactive metals oxide rapidly and form a stable oxide. Refractory metals and alloys have melting points above ~ 1750° C (~ 3200 F°).
Stainless Steel Alloys
Stainless steel alloys are austenitic, ferritic, martensitic, precipitation hardened (PH), and duplex metal materials that are available in a wide variety of grades, shapes, and sizes.
Titanium and Titanium Alloys
Titanium and titanium alloys are non-ferrous metals with excellent corrosion resistance, fatigue properties, and a high strength-to-weight ratio.
Zinc and Zinc Alloys
Zinc and zinc alloys are non-ferrous alloys that are used widely in the production of die cast components.

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Engineering Web: Copper Brass and Bronze Alloys
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Copper - Wikipedia, the free encyclopedia
There exist copper and bronze artifacts from Sumerian cities that date to 3000 BC, and Egyptian artifacts of copper and copper-tin alloys nearly as
Copper
Iron's alloys -- brass and bronze -- are very important: all American coins are copper alloys and gun metals also contain copper.
Copper Standards
Standard Specification for Copper Alloys in Ingot Form
See ASTM International Information
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