Abstract

AK Steel 13-4SR equals AISI Type 409 in corrosion. The alloy with 3.75% Al is used in exhaust systems and has excellent oxidation resistance. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on corrosion resistance as well as forming and joining. Filing Code: SS-1144. Producer or source: AK Steel Corporation.

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