Copper No. C12100 is a silver-bearing copper deoxidized with phosphorus but with the phosphorus maintained at a low level (nominally 0.008%) to achieve good electrical conductivity. In the annealed condition it has low strength but can be cold worked to moderate strength levels. It is suitable for use in a wide range of electrical, architectural and hardware applications. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as fatigue. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-402. Producer or source: Copper and copper alloy mills.