1. Round steel
2. Diameter: 150mm-350mm
3. Length: 6M
4. Forging materials
5. Quality, GB2 defectoscopy

Alloy tool steel, carbon tool steel is joined on the basis of chromium, molybdenum, tungsten, vanadium and other alloying elements to improve hardenability, toughness, wear resistance and heat resistance of a class of steel. It is mainly for the manufacture of measuring tools, cutting tools, impact tools, and cold and hot molds and some special purpose tools