Armco 409 Ni is a fine-grain stainless steel developed for applications more than 0.120 in. thick needing an alloy superior to Type 409 stainless steels in weld formability and toughness. Applications include coal-handling equipment, transportation containers, mixers, liners, exhaust flanges, heat shields, and cyclones. This datasheet provides information on composition, physical properties, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming and joining. Filing Code: SS-663. Producer or source: Armco Inc., Specialty Flat-Rolled Steels.

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