COBALT CHROME is an air-hardening,high-carbon, high-chromium die steel. The addition of approximately 3% to this steel gives it extra resistance to galling and pick-up and additional red hardness which is useful on semi-hot-work applications. It also is recommended when it is desirable to nitride specialized tools. Its many uses include dies, gages, punches, rolls and slitter knives. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming, heat treating, and machining. Filing Code: TS-427. Producer or source: Latrobe Steel Corporation.