NAK80 steel material is a prehardening plastic mold steel . Out of the factory, the hardness can be 37-43 HRC. Without S, it has good mirror polish and EDM. After the production of special smelting, it will get high cleanness and stable performance. NAK80 steel has great polishing property, it no needs heat treatment. Perfect machinability and lower surface roughness, the hardness is balance in anywhere. After the processing of spheroidizzing annealing, its machinability will be better. Add the elements of Vanadium and Molybdenum in a special way, the wear resistance is up to the next level. And the toughness is good, with the great mechanical properties, you do not need to worry about the problem of fracture.