Swissmetal alloy SM900R is a free-machining nickel-free copper alloy with high yield strength and high mechanical strength. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: CU-646. Producer or source: Swissmetal Metalworks Ltd, Plant Boillat.