Bunting No. 156 is a hard phosphor gear and bearing bronze recommended where the service requirements are severe. 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 heat treating, machining, and joining. Filing Code: Cu-158. Producer or source: Bunting Brass & Bronze Company.