瑞典伊萨OKAUTROD309L不锈钢实心焊丝低碳钢焊接材料种类ESAB牌号技术标准熔敷金属力学性能熔敷金属化学成分（％）SFA/AWSEN屈服值Mpa抗拉强度Mpa延伸率％冲击值JCSiMn手工焊条OK43.32A5.1E6013EN499E420RR1246055024+20℃650℃400.070.40.5OK46.00A5.1E6013EN499E380RC11400510280℃70-20℃350.080.30.4OK46.16A5.1E7014EN499E380RC1144050528+20℃750℃70-20℃400.090.40.5OK48.04A5.1E7018EN499E424B32H548056030-20℃150-40℃1000.060.51.1OK48.05A5.1E7018EN499E424B42H544554029-20℃140-40℃700.060.51.1OK48.15A5.1E7018EN499E423B32H549057530-20℃110-30℃60-40℃500.060.51.1OK48.18A5.1E7018-1EN499E425B32H1049057529-20℃160-40℃120-50℃900.070.41.3)