Oblon, McClelland, Maier & Neustadt, L.L.P.
Flux-cored wire for gas-shielded arc welding and welding method
The purpose of the present invention is to provide a flux cored wire which has good high-temperature cracking resistance, and which enables the achievement of a welded part exhibiting excellent coating adhesion. The present invention relates to a metal flux cored wire for gas-shielded are welding, which contains, relative to the total mass of the wire, 0.02-0.30% by mass of C, 0.3-1.5% by mass of Si, 0.3-2.5% by mass of Mn, and oxide of at least one element selected from the group consisting of Si, Cr and Ni in an amount of 0.01-0.30% by mass in total, 0.020% by mass or less of S, and 0.3% by mass or less of Al, Ca, Mg, K and Na in total in the form of metals or alloys, with the balance made up of Fe and unavoidable impurities.
Kobe Steel, Ltd.
B C C C B C B B B C
B23K C22C C22C C22C B23K C22C B23K B23K B23K C22C
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Minoru Reiichi Kei
Miyata Suzuki Yamazaki