| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas shielded arc welding wire which is good in the crosslinkability in a gap of a large clearance of welding materials, prevents the weld crack liable to occur during solidification of weld metal, is excellent in the removability of weld slag and decreases spatters in gas shielded arc welding of thin steel sheets and a pulse MAG welding method using the same. SOLUTION: This gas shielded arc welding wire for the thin steel sheets contains, by mass % 0.03 to 0.20% C, 0.5 to 2.0% Si, 0.8 to 3.0% Mn, <=0.015% P, <=0.005 S, 0.005 to 0.0300% O, further contains 0.005 to 0.200% total of one or total of >=2 kinds among La, Ce, Zr and Ti and 0.005 to 0.200% one or total of >=2 kinds among Bi, Sb, As, Pb, and Sn, and consists of the balance Fe and inevitable impurities.
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