产品描述： C Mn P S Si Cu Ni Cr Mo Al As B Co 0.011 0.08 ＜0.01 ＜0.01 0.02 0.01 0.03 0.03 ＜0.01 ＜0.003 ＜0.003 ＜0.0002 ＜0.003 Nb Pb Sb Sn Ta Ti V W Zr Ca N O Zn 0.004 ＜0.001 0.004 ＜0.004 ＜0.001 ＜0.001 0.004 0.001 ＜0.0005
