Jessop JS alloy 20 was designed primarily for resistance to sulfuric acid attack. It also resists pitting and stress-corrosion cracking. It is columbium-stabilized to minimize carbide precipitation during welding. Often spoken of as one of the Super Stainless Steels, it carries a nickel alloy UNS number. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Ni-371. Producer or source: Jessop Steel Company. Originally published April 1989, revised July 1991.

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