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AUSTENITIC STAINLESS STEEL WITH IMPROVED CREEP RESISTANCE AND METHOD OF MANUFACTURING THE SAME
AUSTENITIC STAINLESS STEEL WITH IMPROVED CREEP RESISTANCE AND METHOD OF MANUFACTURING THE SAME
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机译:耐蠕变性能得到提高的奥氏体不锈钢及其制造方法
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摘要
Disclosed are austenitic stainless steels having a potential fixed to precipitates in a microstructure through temper rolling to improve high temperature creep resistance, and a method of manufacturing the same. Austenitic stainless steel having excellent creep resistance according to an embodiment of the present invention, in weight%, C: 0.1% or less, Si: 1.0% or less, Mn: 2.0% or less, S: 0.003% or less, Cr: 16 to 24%, Ni: 8 to 12%, Nb: 0.5% or less, N: 0.1 to 0.25%, remaining Fe and unavoidable impurities, and the aspect ratio of the grain in the rolling direction satisfies 1.2 to 2.0 Grain fraction is 40% or more.
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