Welcome: Sino Special Metal Co., Ltd.
English ∷  Spain
sales@ssmsteel.com 86-19527792928

Copper Nickel

what is Copper Nickel ?

Copper nickel, also known as cupronickel, refers to a group of alloys composed of copper, nickel, and sometimes other elements such as iron and manganese. The most common copper nickel alloy is composed of 90% copper and 10% nickel, although other compositions such as 70/30 and 66/30/2 are also used for specific applications.

What is Copper Nickel used for?

Copper Nickel (CuNi) is an alloy made of copper and nickel, typically with small amounts of other elements, such as iron and manganese. It has a range of uses, including:

  1. Coinage: Copper Nickel is used to make coins in many countries. The alloy is particularly well-suited for this purpose because it has good durability, is resistant to corrosion, and has a pleasing appearance.

  2. Marine applications: Due to its resistance to corrosion in seawater, Copper Nickel is commonly used in marine applications, including piping systems for ships, offshore oil and gas platforms, and desalination plants.

  3. Electrical wiring: Copper Nickel wire is used in a variety of electrical applications, including heating elements, resistance wires, and instrument wires.

  4. Heat exchangers: Copper Nickel is often used in heat exchangers because it has good thermal conductivity and is resistant to corrosion.

  5. Jewelry: Copper Nickel is sometimes used in jewelry, particularly for costume jewelry, because it is less expensive than gold or silver.

  6. Musical instruments: Copper Nickel is used in some musical instruments, particularly those with brass components, such as horns and cymbals.

Copper nickel Equivalent Grades


Copper Nickel GradeChemical CompositionCommon UsesEquivalent Grades
CuNi10Fe1Mn10% Ni, 1% Fe, 1% MnSeawater piping systems, heat exchangers, condensersUNS C70600, DIN 2.0872, BS CN102, ASTM B466 C70600
CuNi30Mn1Fe30% Ni, 1% Fe, 1% MnSeawater piping systems, heat exchangers, desalination plantsUNS C71500, DIN 2.0882, BS CN107, ASTM B466 C71500
CuNi70/3070% Cu, 30% NiMarine applications, electrical equipment, heat exchangersUNS C71500, DIN 2.0882, BS CN107, ASTM B466 C71500
CuNi90/1090% Cu, 10% NiSeawater piping systems, heat exchangers, condensersUNS C70600, DIN 2.0872, BS CN102, ASTM B466 C70600



SSM specializes in manufacturing and supplying a range of Copper nickel products, including flanges, pipes, fittings, plates, fasteners, and round bars. We also offer customized solutions tailored to meet the specific needs of our customers. With a dedicated team of experienced researchers and skilled industrial workers, we are committed to delivering products of exceptional quality. If you have any inquiries or require further information, please do not hesitate to reach out to us.