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AUTOMOTIVE EXHAUST SYSTEM FERRITIC STAINLESS STEEL HAVING IMPROVED HEAT RESISTANCE AND CONDENSED WATER CORROSION RESISTANCE, AND MANUFACTURING METHOD THEREFOR.
AUTOMOTIVE EXHAUST SYSTEM FERRITIC STAINLESS STEEL HAVING IMPROVED HEAT RESISTANCE AND CONDENSED WATER CORROSION RESISTANCE, AND MANUFACTURING METHOD THEREFOR.
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机译:具有改善的耐热性和冷凝水耐蚀性的汽车排气系统铁素体不锈钢及其制造方法。
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摘要
Disclosed are an automotive exhaust system ferritic stainless steel having improved heat resistance and condensed water corrosion resistance, and a manufacturing method therefor. According to one embodiment of the present invention, the ferritic stainless steel comprising: a stainless steel base metal comprising, by wt%, 0.01% or less of C, 0.5-1.0% of Si, 0.5% or less of Mn, 0.035% or less of P, 0.01% or less of S, 11-18% of Cr, 0.013% or less of N, 0.15-0.5% of Ti, 0.03%-0.5% of Sn, and the balance of Fe and other inevitable impurities; and an aluminum plated layer formed on the stainless steel base metal, comprises a plating compound comprising (Al19FeMnSi2)5,31 (aluminum iron manganese silicide) at the interface between the stainless steel base metal and the aluminum plated layer.
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