CRUCIBLE 420 is a hardenable chromium steel designed particularly for cutlery applications. It is the general-purpose cutlery grade of stainless steel. It is magnetic at all times. Among its many applications are bushings, cutlery, valve trim and dental and surgical instruments. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-394. Producer or source: Crucible Specialty Metals Division, Colt Industries.