A2
A2 (X100CrMoV5 ;CSN 19571PH; SKD12; 1.2363; K305)
(1% Carbon (C), 5.25% Chromium (Cr), 1.1% Molybdenum (Mo), 0.2% Vanadium (V), 0.8% Manganese (Mn), 0.3% Silicon (Si)) It has high thermal stress resistance than O1 steel. Typical Rockwell hardness up to 63 HRc.
