Coal ships and coal and iron ore combination carriers hold for corrosion-resistant steel

摘要

PROBLEM TO BE SOLVED: To provide a corrosion-resistant steel for a hold of a coal carrier or a coal/ore carrier, capable of suppressing corrosion after coating film is peeled off under wet-dry cyclic conditions and low-pH environment.;SOLUTION: The corrosion-resistant steel for a hold of a coal carrier or a coal/ore carrier has a composition comprising, by mass%, 0.010-0.200% C, 0.01-0.50% Si, 0.10-2.0% Mn, ≤0.025% P, 0.005-0.050% S, 0.005-0.10% Al, 0.01-1.0% Cu, 0.01-1.0% Ni, 0.010-0.50% Sb, 0.0010-0.0080% N and the balance being Fe and unavoidable impurities.;COPYRIGHT: (C)2013,JPO&INPIT