SCM415(KS.JIS) Material comparison table * SCM415(KS,JIS) Material comparison table (Chromium molybdenum steels) 1. Chemical composition Code KS JIS Material Grade SCM415 SCM415 C 0.13~0.18 0.13~0.18 Si 0.15~0.35 0.15~0.35 Mn 0.60~0.85 0.60~0.85 P ≦0.030 ≦0.030 S ≦0.030 ≦0.030 Ni 기술 2023.12.31