| Properties vary with composition, however, some properties are outlined below. Copper 90/10 and Copper 70/30 • Outstanding resistance to corrosion, particularly sea water • 70/30 is stronger and has superior resistance to impingement corrosion • Good resistance to biofouling, with the 90/10 alloy being slightly superior compared to the 70/30 alloy Copper rich alloys are: • Ductile • Can be hardened only by cold working • Good corrosion resistance • Good strength • Low temperature co-efficient of electrical resistance The nickel content in these alloys also enables them to retain their strength at elevated temperatures compared to copper alloys without nickel. |