| 摘要 |
PROBLEM TO BE SOLVED: To provide a flux cored wire for gas shielded arc welding for atmospheric corrosion resistance steel which is fine in the arc conditions, small in generation amount of spatters, and in which excellent slag detachability and bead shape are obtained and which is excellent in the mechanical performance of weld metal in the horizontal fillet welding of atmospheric corrosion resistant steel of 400 to 570 N/mm<SP>2</SP>grade. SOLUTION: The wire consists of, by mass to the whole mass of the wire, 2.0-4.0% Ti oxide expressed in terms of TiO<SB>2</SB>, 0.5-1.5% SiO<SB>2</SB>, 0.1-0.6% ZrO<SB>2</SB>, 0.02-0.08% fluoride of the value expressed in terms of F, 0.02-0.08% C, 0.3-0.7% Si, 1.5-2.5% Mn and Mn/Si of 2.5-6.0, 0.15-0.5% Al, 0.15-0.5% Mg and Al/Mg of 0.3-3.0, 0.3-0.7% Ni, 0.45-0.8% Cr, 0.3-0.6% Cu and the balance Fe with an arc stabilizer and inevitable impurities. COPYRIGHT: (C)2008,JPO&INPIT
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