圆钢钢材

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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