STEEL WIRE FOR MAG WELDING IN DC-ELECTRODE AND MAG WELDING METHOD USING THE SAME

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The present invention refers to the second DAC converts high-suitable DC welding, cnr in welding low temperature sintering substrate ([...]) possible to prevent that a deficiency, in addition a joint is gap capable of welding healthy even, in excellent in stability, and has arc weldability and gap, generating a small amount of the second DAC converts high-sputter MAG welding steel wire for welding MAG the second DAC converts high-using the same, and a circuit is provided to method. Specifically, a C 0.20 mass % hereinafter, a 0.25 ∼ 2.5 mass % Si, 0.45 ∼ 3.5 mass % of Mn, rare earths and 0.005 ∼ 0.040 mass %, a P 0.05 mass % hereinafter, a S containing 0.05 mass % hereinafter, 52.5 unavoidable impurities and Fe MAG the second DAC converts high-made of steel for welding by a rope. of fabricating wire to.