... hard rock drilling, steel bars with high compression ratios, pipe drawing, punching tools, core cabinet of powder metallurgy automatic molders etc ... .YG16C 13.7-14.1≥2400≥84.0Forging dies with impact resistance, hot dies etc.YG20 13.4-14.8≥2480≥83 ... .5Qualified for making dies with low impact such as punching watch parts, battery shells ...