UNS S41003 is a low-cost utilitarian martensitic stainless steel to be used for highway and other applications. It is used in the tempered condition at several strength levels. This datasheet provides information on composition, physical properties, elasticity, tensile properties, and shear and bend strength It also includes information on forming, heat treating, and joining. Filing Code: SS-815. Producer or source: Bethlehem Lukens Plate.