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FERRITIC STAINLESS STEEL FOR AUTOMOTIVE EXHAUST SYSTEM WITH IMPROVED HEAT RESISTANCE AND CONDENSATE CORROSION RESISTANCE, AND METHOD FOR MANUFACTURING THE SAME
FERRITIC STAINLESS STEEL FOR AUTOMOTIVE EXHAUST SYSTEM WITH IMPROVED HEAT RESISTANCE AND CONDENSATE CORROSION RESISTANCE, AND METHOD FOR MANUFACTURING THE SAME
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机译:具有改善的耐热性和耐冷凝水腐蚀性能的汽车排气系统用铁素体不锈钢及其制造方法
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摘要
Provided are a ferritic stainless steel for automotive exhaust systems with improved heat resistance and condensate corrosion resistance and a method for manufacturing the same. The ferritic stainless steel according to an exemplary embodiment of the present invention includes a stainless steel base material comprising, in % by weight, C: 0.01% or less, Si: 0.5 to 1.0%, Mn: 0.5% or less, P: 0.035% or less, S: 0.01% or less, Cr: 11 to 18%, N: 0.013% or less, Ti: 0.15 to 0.5%, Sn: 0.03 to 0.5%, and the remainder of Fe and other inevitable impurities, and an Al-plated layer formed on the stainless steel base material, wherein the ferritic stainless steel comprises a plating compound comprising (Al19FeMnSi2)5,31 (Aluminum Iron Manganese Silicide) at an interface between the stainless steel base material and the Al-plated layer.
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