P550 is a fully austenitic Mn-Cr-N steel with 1.4% nickel minimum. The alloy is a special nonmagnetic steel with a high nitrogen content. This datasheet provides information on composition, physical properties, hardness, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance. Filing Code: SS-1266. Producer or source: Schoeller-Bleckmann.