Copper Alloy No. C72200 was developed to improve on the performance of the copper-nickel condenser tube alloys. It is essentially 85-15 copper-nickel with additions of 0.8% iron, 0.5% chromium and 0.5% manganese. It has exceptionally high resistance to erosion and corrosion by flowing seawater. Its strength and other mechanical properties are similar to the older copper-nickel alloys (90-10 and 70-30). Alloy C72200 is used primarily for condenser and heat-exchanger tubing using seawater and for salt-water piping. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-449. Producer or source: Copper and copper alloy mills.