AIR HARD is an air or oil hardening, high-carbon tool and die steel for minimum distortion after hardening. It is used for blanking and forming dies, rolls, punches, and other such applications where a deep hardening, non-deforming steel with good resistance to wear is desired. (Also furnished in FM-Free Machining type.) 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-207. Producer or source: Teledyne Vasco.