Copper Alloys

Scientific Information

Symbol	: Cu
Atomic number	: 29
Atomic weight	: 63.546
Melting point	: 1085 °C
Specific gravity	: 8.96
Element category	: transition metal

Copper is a reddish-gold colored metal that is ductile, malleable, and an effective conductor of heat and electricity. It occurs naturally in the earth's crust and is found in the environment as a metal and in various minerals (e.g. cuprite and malachite). In some areas, concentrations range from less than 50 ppm to more than several thousand ppm. Most of the extracted copper comes from sulfide ores. Copper is commercially produced mainly by smelting or leaching, usually followed by electrodeposition from sulfate solutions.

The major portion of copper produced in the world is used in the electrical industries; most of the rest is combined with other metals to form alloys. Copper alloys are complex metallic formulations in which copper is used as the base material with different concentrations of alloying elements such as nickel, aluminum, silicon, tin and zinc to give the alloy the desired properties. Because of their high electronic conductivity, thermal transfer property, and corrosion resistance, copper alloys are generally used as lead-frame material and other electrical industry.

Types

There are as many as 400 different components of copper and copper alloys. The most well-known copper alloy families are bronze (copper-tin), brass (copper-zinc), cupronickel (copper-nickel) and (red) copper. These actually represent families of alloys, all made by varying the amount of specific alloying elements.

• Bronze: an alloy consisting primarily of copper, commonly with about 12–12.5% tin and often with the addition of other metals (including aluminum, manganese, nickel, or zinc) and sometimes non-metals, such as phosphorus, or metalloids such as arsenic or silicon.
• Brass: an alloy metal that is made of copper and zinc and often with the addition of other metals, such as lead, tin, aluminum, etc.
• Cupronickel: an alloy of copper that contains nickel and strengthening elements, such as iron and manganese.
• (Red) Copper: an alloy with a high copper content.

Common Properties

Our Products

Alfa Chemistry is a manufacturer of standard & custom specialty metals & alloys. We now can provide various copper alloy products including bronze, brass, cupronickel and (red) copper. Please click the link below for more details.

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  Bronze

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  Brass

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  Cupronickel

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  Copper

Alfa Chemistry specializes in providing high quality metals and alloys. We also provide professional custom production services to help our customers accelerate their own R&D and reduce the costs, and we are always available to answer any questions you may have during the R&D and production process. Please do not hesitate to contact us if you are in need of assistance.

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