ATI 219, also known by the more familiar 21-6-9 or XM-11 designations, is a nitrogen-bearing austenitic stainless steel that has substantially higher strength than the standard austenitic stainless steels. The alloy remains non-magnetic even after substantial cold forming and exposure to subzero temperatures. Many of the applications for ATI 219 make use of its combination of high strength and nonmagnetic properties, even at very low temperatures. This datasheet provides information on composition, physical properties, and elasticity. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-1348. Producer or source: ATI.

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