42crMo圆钢执行标准:GB/T
3077-1999;
42CrMo圆钢化学成分:
42CrMo圆钢C(碳)含量为0.38~0.45%;
42CrMo圆钢Si(硅)含量为0.17%-0.37%;
42CrMo圆钢Mn(锰)含量为0.50%-0.80%;
42CrMo圆钢P(磷)含量为不大于0.035%;
42CrMo圆钢S(硫)含量为不大于0.035%;
42CrMo圆钢Cr(铬)含量为0.90~1.20%;
42CrMo圆钢Ni(镍)允许残余含量≤0.030%;
42CrMo圆钢Cu(铜)允许残余含量≤0.030%;
42CrMo圆钢Mo(钼)含量为不大于0.15~0.25%
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