ARMCO 409 HIGH PERFORMANCE-10 has the lowest price of all of the manufacturer's stainless steels. It has an excellent combination of good formability, economy and good resistance to corrosion and oxidation; therefore, it is suited particularly to automotive exhaust applications, especially where improved formability over regular AISI Type 409 stainless steel is required. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fatigue. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SS-479. Producer or source: Armco Inc., Eastern Steel Division.