Copper nickel is known as Outstanding resistance to corrosion, particularly sea water,7030 is stronger and has superior resistance to impingement corrosion Good resistance to biofouling, with the 9010 alloy being slightly superior compared to the 7030 alloy.The good resistance to biofouling and sea water corrosion resistance of the copper nickel alloys, Copper 9010 and Copper 7030 alloys have lead to its use in applications such as cladding for ships' hulls, legs of oil rig platforms and sea water intake screens.