| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a steel wire for gas shielded arc welding of a high-strength steel plate capable of obtaining weld metal having the adequate strength, and consistent excellent toughness particularly in a low-temperature zone in the welding of high-tensile steel of≥780 MPa. <P>SOLUTION: The steel wire contains, by mass based on the total mass of the wire, C:0.02-0.10%, Si:0.1-1.0%, Mn:1.0-1.95%, Cu:0.5-1.5%, Ni:1.5-5.0%, Cr:0.3-1.2%, Mo:0.3-1.0%, Ti:0.02-0.30%, and further contains, S:≤0.030%, P:≤0.030%, N:≤0.010%, O:≤0.010%, and the balance Fe with inevitable impurities. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
