| 摘要 |
PURPOSE: A steel sheet with excellent corrosion resistances at low pH chloride solution and a manufacturing method thereof are provided to prevent casting cracking and improve the yield of steel sheets by optimizing the steel components. CONSTITUTION: A steel sheet with excellent corrosion resistances at low pH chloride solution comprises one or more elements selected from the group consisting of Cu 0.05~1.0 weight% S 0.03 weight% or less, C 0.02~0.2 weight%, Si 0.05~1.5 weight%, Mn 0.2~2.0 weight%, P 0.03 weight% or less, Ni 0.05~3.0 weight%, N0.001~0.01 weight%, Al 0.01 weight% or less, and Mo 0.02~0.5 weight%, and the rest Fe and an inevitable impurity. |
