COPPER ALLOY NO. C15500 is a silver-bearing copper alloy with softening resistance. A typical application is lead frames for electric devices. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fatigue. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: CU-540. Producer or source: Copper and copper alloy mills. Originally published October 1988, revised December 1994.