Magnolia B-1 is a lead-free copper alloy. It machines easier than the leaded SAE 660 alloy that it was designed to duplicate. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive strength as well as fracture toughness. It also includes information on casting, machining, and joining. Filing Code: CU-609. Producer or source: I. Schumann Company.