Hardness Conversion Table HB-HRC-HRB-HRA Applicable to stainless austenitic steels - in accordance w
Hardness Conversion Table HB-HRC-HRB-HRA Applicable to stainless austenitic steels - in accordance with ASTM A 370 - 03a Hardness HRC 150 – kgf diamond penetrator Hardness HRA 60 kgf diamond penetrator Rockwell Superficial Hardness 15N Scale 30N ......