ArcelorMittal K03 is a ferritic stainless steel, mostly used as a stable price, lower-cost substitute for nickel-containing austenitic stainless steels. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, and joining. Filing Code: SS-1042. Producer or source: Arcelor Stainless Processing LLC.