HOTFORM No. 3 is a medium-carbon, air-hardening, cold-work die steel. It also is used in some applications as a hot-work tool and die steel. An excellent combination of high hardenability, good wear resistance and toughness makes Hotform No. 3 useful for special tools. Typical applications are blanking dies, cold-forming dies, punches and cold and hot shear blades. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming, heat treating, machining, and surface treatment. Filing Code: TS-386. Producer or source: Teledyne Vasco.