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US 6,784,402 B2Granted
Steel wire for MAG welding and MAG welding method using the same
AssigneeJfe Steel Corporation
InventorsTokihiko Kataoka, Shuichi Sakaguchi, Koichi Yasuda
Life of this patent
Estimating the term…
Abstract
A steel wire for MAG welding in DC-electrode negative contains about 0.20% by mass or less of C, about 0.25% to about 2.5% by mass of Si, about 0.45% to about 3.5% by mass of Mn, about 0.005% to about 0.040% by mass of rare-earth elements, about 0.05% by mass or less of P, about 0.05% by mass or less of S, and the balance being Fe and incidental impurities. A method for MAG welding in DC-electrode negative for welding steel sheets having a thickness of about 0.2 to about 4.5 mm using the steel wire is also disclosed.
Claims13
A steel wire for MAG welding in DC-electrode negative comprising:
- a core having
- about 0.20% by mass or less of C;
- about 0.25% to about 2.5% by mass of Si;
- about 0.45% to about 3.5% by mass of Mn;
- about 0.005% to about 0.040% by mass of rare-earth elements;
- about 0.05% by mass or less of P,
- about 0.05% by mass or less of S;
- the balance being Fe and incidental impurities;
- and
- an outermost Cu layer coating said steel wire and having a thickness of at least 0.5 μm.
7 more elements
Dependencies are inferred from the claim text.