| 摘要 |
<p>Disclosed is a corrosion-resistant steel material for a cargo oil tank, which has excellent resistance to general corrosion and local corrosion and is characterized by containing, in mass%, 0.01-0.2% of C, 0.01-1.0% of Si, 0.05-2.0% of Mn, 0.002-0.1% of P, 0.01% or less of S, 0.01-2.0% of Cu, 0.01-1.0% of Ni, more than 0% but less than 0.01% of W and 0.1% or less of Al, with the balance made up of Fe and impurities. The corrosion-resistant steel material for a cargo oil tank may additionally contain one or more elements selected from among Cr, Mo, Ti, Zr, Sb, Sn, Nb, V, B, Ca, Mg and REM. The surface of the corrosion-resistant steel material for a cargo oil tank may be coated with a sulfide layer or an anti-corrosion coating film.</p> |
