| 摘要 |
PROBLEM TO BE SOLVED: To provide a flux-cored wire for electrogas arc welding having excellent workability in the one-electrode electrogas arc welding of a thick steel plate, and capable of obtaining a weld metal of high strength and excellent impact performance. SOLUTION: The flux-cored wire for electrogas arc welding contains, by mass, 0.03-0.07% C, 0.3-0.6% Si, 1.8-2.0% Mn, 0.9-1.2% Ni,≤0.1% Cr,≤0.3% Cu, 0.3-0.8% Mo, 0.10-0.27% Ti, 0.008-0.014% B, 0.15-0.30% Mg,≤0.05% Al,≤0.025% P,≤0.025% S, and 1.0-2.0% slag generating agent while containing 0.4-0.7% F in the slag generating agent. COPYRIGHT: (C)2009,JPO&INPIT
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