COPPER ALLOY No. 651 is a low-silicon bronze which has excellent mechanical properties and good corrosion resistance. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as creep. It also includes information on corrosion resistance as well as heat treating, machining, and joining. Filing Code: Cu-247. Producer or source: Copper and copper alloy mills.