Heppenstall T73 is a low carbon, medium tungsten, hot work steel which has excellent red hardness properties. It is recommended for forging and extrusion dies. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on high temperature performance as well as forming, heat treating, machining, and joining. Filing Code: TS-120. Producer or source: Midvale-Heppenstall Company.