SCM23合金钢/SCM23圆钢/SCM23化学成份/SCM23力学性能/SCM23热处理规范化学成份碳 C :0.17~0.23硅 Si:0.17~0.37锰 Mn:0.90~1.20铬 Cr:1.10~1.40钼 Mo:0.20~0.30现货规格:圆钢:16-300,钢板可订做昕翔实业为广大新老客户提供X质的金属材料,021-57899793SCM23合金钢/SCM23圆钢/SCM23化学成份/SCM23力学性能/SCM23热处理规范