CarTech AerMet-for-Tooling is a low-carbon, cobalt-nickel-chromium-molybdenum, alloy tool steel that exhibits high strength and high hardness together with exceptional ductility and toughness. This alloy is designed for components that require a hardness of about 53–55 HRC along with very high toughness. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on forming, heat treating, machining, and joining. Filing Code: TS-813. Producer or source: Carpenter Technology Corporation.