... similar to H13 (ASTM), 1.2344(DIN), SKD61(JIS)Chemical Composition: C 0.39, Si 1 ... .10, Mn 0.30, P≤0.028, S≤0.020, Cr 5.10, W ≤0.30 ... to H13 (ASTM), 1.2344(DIN), SKD61(JIS)Chemical Composition: C 0.39, Si 1 ... .10, Mn 0.30, P≤0.028, S≤0.020, Cr 5.10, W ≤0.30 ... Chemical Composition: C 0.39, Si 1.10, Mn 0.30, P≤0.028, S≤0.020, Cr 5.10, W ≤0.30 ...