BUNTING Alloy 72 is a cast bushing and bearing bronze with excellent load capacity and anti-friction qualities. It is used in a wide variety of industrial and automotive equipment. 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 corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: Cu-269. Producer or source: Bunting Brass & Bronze Company.