这是什么牌号材料啊．．．急．．．

封科贤

这是材料的化学成份分析結果如下:
元素_____C_____Mn____Si_____P______S_______Cu_____Ni______Cr_____Mo_____Al_____V_______Co___
樣本1___0.19___0.80___0.10___0.016___0.035___0.008___0.087___0.10___0.005___0.008___0.008___0.00035
樣本2___0.22___0.79___0.10___0.017___0.036___0.009___0.086___0.10___0.005___0.008___0.008___0.00035
樣本3___0.20___0.80___0.10___0.016___0.035___0.009___0.086___0.10___0.005___0.008___0.008___0.00035

luxueying2006

是20Mn材料，标准要求C0.17～0.24，Mn0.8～1.0，Si0.17～0.37，P\S都小于0.035，Ni\Cr\C产要求不大于0.25，其它的标准上未介绍。