| 摘要 |
The hot-dip galvanized steel sheet has a galvanized layer formed on the surfaces of steel sheet which contains, in mass%, C: 0.01- 0.15%, Si: 0.001-2.0%, Mn: 0.1-3.0%, Al: 0.001-1.0%, P: 0.005-0.060%, S ? 0.01%, and the remainder of which comprises Fe and inevitable impurities. The quantity of adhesion per surface in the galvanized layer is 20-120 g/m2. There is a total of 0.05 g/m2 or less per surface of one or more kinds of oxides selected from those of Fe, Si, Mn, Al, and P inside the surface layer portion of the steel sheet no more than 100 µm deep from the base steel sheet surface directly below the galvanized layer. The steel sheet has excellent corrosion resistance, resistance to galvanized coat peeling with a high degree of processing, and strength. |
