40CrMn,是中国国家标准规定的一种的牌号。统一数字代号:A22402主要特性
好,强度高。可替代和 。
应用举例制造在高速和高弯曲负荷工作条件下泵的轴和连杆、无冲力冲击负荷的齿轮泵、水泵转子、离合器、高压容器盖板的螺栓等 。
化学成分质量分数(%):
碳 C :0.37~0.45
硅 Si:0.17~0.37
锰 Mn:0.90~1.20
硫 S :允许残余含量≤0.035
磷 P :允许残余含量≤0.035
铬 Cr:0.90~1.20
镍 Ni:允许残余含量≤0.030
铜 Cu:允许残余含量≤0.030
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