| 摘要 |
PROBLEM TO BE SOLVED: To provide a welding wire capable of improving the peeling resistance of a thin oxidized film formed on a welding part in the MAG welding in which an argon gas is used as a main body of a shielding gas. SOLUTION: The welding wire is used for the MAG welding using the shielding gas in which oxygen of 2-20 vol.% or CO<SB>2</SB>of 5-50 vol.% is mixed to the argon gas. The welding wire is composed, by mass, of C of 0.01-0.10%, Si of 0.20-0.70%, Mn of 1.0-1.8%, S of≤0.02%, Ti of 0.06-0.25%, Ni of 0.2-3.5%, Cr of 0.2-2.5%, and the balance of Fe and inevitable impurities. COPYRIGHT: (C)2004,JPO&NCIPI
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