Performance Materials

Copper-Nickel Alloys

Cu-Ni · corrosion resistance · high strength

A broad family of copper-nickel alloys built for corrosion resistance in seawater and aggressive media. From the Navinic® 90/10 and 70/30 cupronickels to high-strength nickel-aluminium grades (K5, K7) and resistance / electronic grades (ARCAP, Constantan), these alloys combine weldability, machinability and reliability for marine, defense, aerospace and electronics.

Cupronickels & high-strength Cu-Ni gradesASTM B466ASTM B1712.1504EEMUA 234BS 2871BS 2874
Copper-Nickel Alloys
Why Copper-Nickel Alloys

Key characteristics.

Corrosion resistance

Excellent behaviour in salt water and aggressive media.

High mechanical properties

Nickel-aluminium grades reach high strength for structural duty.

Weldable & machinable

Readily welded and machined into complex components.

Broad range

From 90/10 & 70/30 cupronickels to CuNiAl and resistivity grades.

Products · branded grades & forms

10 product lines, one chemistry family.

Matched to the temper, form and spec your program requires.

Available formsBarsStripsWiresRodsTubes

All values from the LBA NA catalogue. Spec values are indicative. Confirm against certified datasheets.

Where it's used · core markets

Primary markets and applications.