| abstract |
An object of the present invention is to provide a marine steel material exhibiting excellent corrosion resistance.n n n C: 0.01 to 0.3%, Si: 0.01 to 2%, Mn: 0.01 to 2%, Al: 0.005 to 0.1%, Cu: 0.01 to 1%, Ni: 0.01 to 1%, and Cr: 0.01 to 1% A ship steel having excellent corrosion resistance, wherein the remainder has a composition composed of Fe and unavoidable impurities, ferrite is the largest structure, and bainite and / or martensite are less than 30% in total (including 0).n n n n Marine Steel, Corrosion Resistance, Crude Oil Tanker, Ballast Tank, Chemical Composition |