Durax-W2 is a chromium, tungsten alloy steel recommended for normal hot working tools. It is shock and impact resistant. It is characterized by high toughness, fatigue resistance and relative ease of heat treatment. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on forming, heat treating, machining, and joining. Filing Code: TS-183. Producer or source: Marathon Specialty Steels Inc..