Swissmetal alloy SM451C is a free machining, heat treatable leaded nickel-copper alloy with mechanical strength and electrical conductivity. It is used in spring contacts. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming and joining. Filing Code: CU-663. Producer or source: Swissmetal Metalworks Ltd, Plant Boillat.