Cupro Nickel Tubes or copper-nickel is an alloy of copper that contains nickel and strengthening elements, such as iron and manganese.
Cupro Nickel Tubes is highly resistant to corrosion in seawater; hence, it is widely used for piping, heat exchangers and condensers in seawater systems, as well as marine hardware.
Cupro-Nickel Tubes (70%/30%) : This alloy provides corrosion resistance in high velocity (from 1 to 4 m/sec) waters, including sea water. The alloy is relatively insensitive to stress corrosion. It has good cold and hot working properties and is readily weldable.
Cupro-Nickel Tubes (90%/10%) : This alloy also has very high erosion and corrosion resistance. It has very high weldability, easy for installation and high anti-fouling properties against sea microorganisms. Relatively high iron content provides better impingement attack resistance. The alloy is unique to stress corrosion cracking.