... ~300MMLength: 200~6000MMProperties1.A kind of widely used cold work tool steel, belong to carbon chromium ledeburitic steel. 2.With good ... , use in making all kinds of complex shape hot work tool steel in heavy running condition. ApplicationsDue to its good wear ... , cold shearing ,drilling bushing ,gauge, wortle, coining die,thread rolling die, screw thread rolling die and so on, which are small impact ...