Allegheny Ludlum AL 304DA is a composite of three plies consisting of carbon steel surrounded on both sides with type 304 stainless steel. This combination supplies corrosion resistance with good ductility for applications like cookware. This datasheet provides information on composition, physical properties, microstructure, hardness, elasticity, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, joining, and surface treatment. Filing Code: SS-780. Producer or source: Allegheny Ludlum Corporation.