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LOW CHROME FERRITIC STAINLESS STEEL WITH HIGH CORROSION RESISTANCE AND STRETCHABILITY AND METHOD OF MANUFACTURING THE SAME
LOW CHROME FERRITIC STAINLESS STEEL WITH HIGH CORROSION RESISTANCE AND STRETCHABILITY AND METHOD OF MANUFACTURING THE SAME
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机译:具有高耐腐蚀性和可延展性的低铬铁素体不锈钢及其制造方法
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摘要
The present invention relates to a low chrome ferritic stainless steel with a high corrosion resistance and stretchability and a method of manufacturing the same, wherein the low chrome ferritic stainless steel with the high corrosion resistance and stretchability is composed of C of 0.03wt% or less, Si of 0.5wt% or less, Mn of 0.5wt% or less, P of 0.035wt% or less, S of 0.01wt% or less, Cr of 14 to 16wt%, Mo of 0.2wt% or less, N of 0.030wt% or less, Cu of 0.5wt% or less, Al of 0.05 wt% or less, Ni of 0.2wt% or less, C+N of 0.040wt% or less, Ti of 0.5wt% or less, remaining Fe and, inevitably added impurities, being controlled in EL value defined by Equation 1 below to be 33 or more and in P.I. value defined by Equation 2 below to be in a range of 14 to 16. EL= -162.1x(C+N)-0.2xCr-l.lxMo-0.2xTi/(C+N)+42.2 (1) P.I.=Cr+3.3Mo (2)
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