主要钢号 Q345A,B,C,D,E Q390A,B,C,D,E Q420A,B,C,D,E Q460C,D,E Q500D,E,Q550D,E Q620D,E,Q690D,E Q295A,B 12Mn,15MnVN,16Mn,15MnV,14MnNb SM490(A,B,C),SM490Y(A,B) SM520(B,C),SM570 St44-3,St52-3,St50-2 St60-2,St70-2 StE315,StE355,StE380 StE420,StE460,StE500 A572Gr42,50,60,65 A633A,B,C,D,E S275JR,JO,J2G3,J2G4 S355JR,JO,J2G3,J2G4,K2G3,K2G4 E395,E335,E360 S275N,S275NL,S355N,S355NL S420N,S420NL,S460N,S460NL 50(A,B,C,D,DD,EE,F) 43(A,B,C,D,EE),55(C,EE,F) WH60,WH410LK(BB41BF) WH490LK(BB503) E355(DD,E),E460(CC,DD,E) E420(DD,E),E460(DD,E) E550(DD,E),E690(DD,E) Fe430(A,B,C,D) Fe510(B,C,D) WDB690,WDB780,WH70 WH80(低焊接裂纹敏感性钢) |