Copper Nickel

Copper nickel alloys, also known as Cu-Ni, 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.

NBM Metals stocks C70600 and C71500 Copper Nickel pipes, which are commonly used in seawater piping due to its complete resistance to barnacles. Due to Its resistance of various sea organisms, this alloy makes seawater desalination, water systems, fire fighting systems, and similar applications very reliable.

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 very thermally 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.


  • Marine hardware
  • Desalination
  • Seawater piping systems
  • Cooling loops
  • Pipe nipples

Copper Nickel Product Selection