UHB QRO 80 MICRODIZED is a chromium-molybdenum-vanadium tool steel with improved performance for tooling used at elevated temperature as in forging, extrusion and die casting. It is electro-slag refined. 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 forming, heat treating, machining, and joining. Filing Code: TS-486. Producer or source: Uddeholm Aktiebolag.