STANDARD PARTS FOR PRESS DIES
Material ：SKD11 Hardness ：60-63HRC Material ：SKH51 Hardness ：61-64HRC Material ：HAP40(SKH40) Hardness ：64-67HRC ,Vacuum furnace heat treatment and advanced tempering technology enable SKD11 as better properties in toughness, grind-resistance and hardness at high temperature compared to SKD11 and SKD12. The strength at the joint part of shoulder and pin has been significantly increased.