| 摘要 |
<p>A weld metal is provided to obtain excellent resistance to sulfuric acid dew point corrosion and high-temperature strength by controlling a composition for a weld metal manufactured by mixing a flux cored arc welding material with steel. A weld metal having excellent resistance to sulfuric acid dew point corrosion and high-temperature strength is characterized in that the weld metal is obtained by using a flux cored arc welding material, and has a composition comprising, by weight percent, 0.02 to 0.15% of C, 0.1 to 1.5% of Si, 0.5 to 2.5% of Mn, not more than 0.03%(without including 0%) of S, not more than 0.03%(without including 0%) of P, 0.2 to 1.5% of Cu, 0.05 to 0.3% of Co, 0.05 to 0.35% of Sb, and one or two of 0.1 to 0.8% of Cr and 0.01 to 0.15% of Mo with the balance of Fe and other inevitable impurities.</p> |
