Armco Type 430 is one of the most widely used of the “nonhardenable” ferritic stainless steels. It combines good corrosion resistance and heat and oxidation resistance up to 816 deg C (1500 deg F) with good mechanical properties. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: SS-803. Producer or source: AK Steel Inc.