别品名AWS型号焊缝金属化学成份金属机械性能特征与用途 CMnSiSPCrNiMoNbVNCuSn抗拉强度0.2%屈服强度Akv冲击功 焊条Chromet 9MV-NE9015-B90.100.70.250.0080.0089.00.71.00.050.20.050.050.00377064065标准P91/T91钢手工电弧焊条,高含镍,具有最佳焊缝韧性 Chromet9-B9E9015-B90.10.50.250.0080.00890.310.040.20.050.05  71059075手工电弧焊条,满足AWS/ASMEA5.5E9015-B9标准 Chromet91VNRE9016-B90.10.70.250.0080.0089.00.71.00.050.20 0.05, 0.050.00362053047手工电弧焊条,专门用于P91钢打底焊接,不需背面吹氩保