Pyromet X-12 is a martensitic stainless steel offering high strength at both room temperature and high heat. It is recommended for use in jet engines, steam turbines and aircraft structural parts. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness and creep. It also includes information on high temperature performance as well as forming, heat treating, machining, and joining. Filing Code: SS-152. Producer or source: Carpenter.