一种抗震耐蚀耐火建筑结构钢用460MPa级埋弧焊丝，属于焊接材料技术领域。其化学元素质量百分比含量为：C：0 .01-0 .15％，Si：0 .10-0 .40％，Cr：0 .10-0 .90％ ,Ni：0 .10-3 .0％，Cu：0-0 .70％ ,Mn：0 .50-1 .80％，Mo：0 .20-0 .59％，Ti：0-0 .12％，V：0-0 .08％，Mg：0-0 .08％，余量为Fe及不可避免的杂质。采用本发明所述的焊丝进行埋弧焊接后，所形成的焊缝金属的屈服强度为400-560Mpa，抗拉强度而为430-630MPa，延伸率A为22-26％，断面收缩率为67-73％。焊缝金属高温屈服强度为300-390MPa。并且具有高的低温冲击韧性。该焊丝能够应用于460MPa级抗震耐蚀耐火建筑结构钢的埋弧焊接。 

A kind of 460 MPa grade submerged arc welding wire for anti-seismic, corrosion-resistant and fire-resistant building structural steel belongs to the field of welding material technology. The mass percentage content of chemical elements was as follows : C : 0.01 – 0.15 %, Si : 0.10 – 0.40 %, Cr : 0.10 – 0.90 %, Ni : 0.10 – 3.0 %, Cu : 0.10 – 0.70 %, Mn : 0.50 – 1.80 %, Mo : 0.20 – 0.59 %, Ti : 0.12 %, V : 0.08 %, Mg : 0.08 %. The rest was Fe and inevitable impurities. After submerged arc welding with the welding wire described in the invention, the yield strength of the formed weld metal is 400 – 560 MPa, the tensile strength is 430 – 630 MPa, the elongation A is 22 – 26 %, and the section shrinkage is 67 – 73 %. The high temperature yield strength of weld metal is300-390MPa. And has high low temperature impact toughness. The welding wire can be applied to the submerged arc welding of 460 MPa grade seismic, corrosion and fire resistant building structural steel.