TOUGHTEM is a chromium-nickel-molybdenum, low-alloy, hot-work steel which has been developed especially for forging die-block applications. It has excellent through-hardening characteristics and good machinability. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on high temperature performance as well as heat treating, machining, and joining. Filing Code: TS-491. Producer or source: Uddeholm Steel Corporation.