SURFACE-TREATED STAINLESS-STEEL SHEET EXCELLENT IN SALT DAMAGE/CORROSION RESISTANCE AND WELD RELIABILITY FOR AUTOMOTIVE FUEL TANK AND FOR AUTOMOTIVE FUEL PIPE AND SURFACE-TREATED STAINLESS-STEEL WELDED PIPE WITH EXCELLENT SUITABILITY FOR PIPE EXPANSION PROCESSING FOR AUTOMOTIVE PETROL PIPE

摘要

The present invention provides the corrosion resistance and weld reliability is excellent automotive fuel tank surface-treated stainless steel sheet, and auto fuel supply tolerance surface-treated stainless steel for use or the fuel line for welded pipes in a salt damage environment, the surface according to a stainless steel sheet having a given component composition a, Sn and unavoidable made of a impurity coating weight is 10 g / ㎡ than 2OO g / ㎡ or less manner plating or Sn and Zn: 0.8 to 10O wt% and unavoidable made of a impurity coating weight is 10 g / ㎡ than 2OO g / ㎡ it has a coating layer not more than manner. ; Salt damage environment, corrosion resistance, weld reliability, the stainless steel plate