ER120S-G气保焊丝高强度焊丝  符合GB/T8110ER90-GAWSA5.28ER120S-G相当SO16834-AG894M21Mn4Ni2CrMo说明:JQ.MG90-G是高强钢用气保实心焊丝，采用富气体保护。电弧柔和，焊接稳定；焊缝成形平整、美观。通过严格控制焊丝的S、P等杂质含量，使焊缝获得优良的综合力学性能。用途:适用于焊接抗拉强度为890N/mm2等级的高强钢结构，如工程机械、起重机械、桥梁等的焊接。焊丝化学成分（%）CMnSiSPNiMoCrTiCu保证值≤0.111.60~1.900.40~0.80≤0.025≤0.0252.00~2.500.50~0.800.20~0.60≤0.12≤0.50      耐腐蚀钢；耐侯钢及耐火钢焊条：J350/J357J507MoNbJ507MoWJ507CrNiJ506CrNiCuJ557NiMoND钢专用焊条JNS钢专用焊条CORTENA钢专用焊条CORTENB钢专用焊条08Cr2A1Mo钢专用焊条气保焊丝低合金钢焊条：J507RJ507GRJ507GRHJ507RHJ507NiTiBJ507HICJ507SHJ557MoVJ607NiJ607RHJ607FeJ707G707NiJ707RH807GJ807RHJ857CrJ907CrJ907GJ107107CrJ107G钼及铬钼耐热钢焊条：R107R207R307R317327R337R347R407R507R707R807R817R307LR317LR407L气保焊丝低温钢焊条：W607W607HW707NiW907NiW107W107NiW406Fe不锈钢焊条：G202G207G217G242G247G257G267G302G307G357G357MG367367MG200M520BM831AM837AA002A002AA002Nb347LA002022LA0322209-16A042A052A062309LA072A082A102A102AA107A132A137AA146A172A202A207A212A222A232A237A242A257A302A307A312A317A402A407A412A422A427A432A502A507A607气保焊丝耐磨堆焊焊条：D107D112D127D132D146D156D167D172D207D212D227D237D246D256D266D276D307D317AD322D327AD337D386D397D406D417D507D507MoD512D516MD516MAD517D547MoD557D577D608D618D628D632D638D642D646D658D667D687D688D698D707D707AD708AD802D812)