COPPER ALLOY No. 630 is a heat treatable aluminum bronze combining wear resistance with high strength and good corrosion resistance. It is recommended for propellers, pump parts, and valves, gears, shafts and pickling equipment. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on low and high temperature performance, and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-176. Producer or source: Ampco Metal Inc..