Copper Nickel Wire

Excellent Resistance to Corrosion and Bio Fouling in Sea Water

Copper-nickel alloy wire have high resistance to sea water environments. There are two common alloys, containing nominally 10% and 30% of nickel. The 10% nickel alloy wire is the most widely used for sea water handling service.

Copper-nickel is an established alloy for many of the world's navies.The 90/10 Nickel Copper Alloy Wire and 70/30 Nickel Copper Alloy Wire/cupronickel alloy wire both have excellent resistance to bio-fouling and corrosion in sea-water with some variations in the performance of the alloys under different conditions. The 90/10 alloy wire has better bio-fouling resistance.  If water velocity is accelerated above 1 m/sec, any slight bio-fouling on metal with good fouling resistance will be easily detached and swept away. On a material that does not have this good fouling resistance, strongly adherent, marine organisms would continue to thrive and multiply.
The excellent corrosion resistance of 70/30 Nickel Copper Alloy Wire and 90/10 copper nickel alloy wire makes them the best choice in Marine situation applications. Some materials with apparently better corrosion resistance may have disadvantages such as lack of resistance to bio-fouling, lack of availability in the forms required, or susceptibility to crevice corrosion. They may also be more expensive and therefore less cost-effective over the required service lifetime.

Alloy	Name	Copper	Nickel	Iron	Lead
C70600	90-10 copper nickel	~ 89	9.0 – 11.0	1.0 – 1.8	< 0.05
C71500	70-30 copper nickel	~ 69	29.0 – 33.0	0.4 – 1.0	< 0.05

Wire Further Processing	Cut to length Wire
	Flat Wire
	Square and Shaped Wire
	Rewinding and spooling
	Polishing and cleaning