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Copper Nickel Alloy(CuNi)

Copper Nickel Alloy

Copper nickel (CuNi) offers excellent corrosion resistance especially in marine salt water environments. Copper nickel alloys that are generally chosen for sea water parts and service equipment contains 10 to 30 percent nickel. These various alloys also have important additions of iron and manganese which are necessary to maintain good corrosion resistance in the harsh environments. Aside from being very corrosion resistant to sea water, copper nickel alloys are thermally very stable. Copper nickel is most commonly used in applications such as electrical and electronic products, tubes for condensers in ships and power plants, various marine products, including valves, pumps, fittings and sheathing for ship hulls.

SIMCO offers Copper Nickel 90/10 and Copper Nickel 70/30, the chemical composition for the same is as follows –

Copper Nickel 90/10

Cu Ni Fe Mn
Balance 9 – 11 1 – 2 0.3 – 1

Note – All values in percentage

Copper Nickel 70/30

Cu Ni Fe Mn
Balance 29 – 32 0.5 – 1.5 0.4 – 1

Note – All values in percentage


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