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HIGH-MANGANESE AUSTENITIC STAINLESS STEEL FOR HIGH-PRESSURE HYDROGEN GAS
HIGH-MANGANESE AUSTENITIC STAINLESS STEEL FOR HIGH-PRESSURE HYDROGEN GAS
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机译:高压氢气用高锰奥氏体不锈钢
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摘要
The present invention proposes an austenitic high Mn stainless steel maintaining a hydrogen embrittlement resistance above that of SUS316L and adapted to a low temperature hydrogen environment by being designed in compositions to comprise, by mass%, C: 0.01 to 0.10%, N: 0.01 to 0.40%, Si: 0.1 to 1%, Cr: 10 to 20%, Mn: 6 to 20%, Cu: 2 to 5%, Ni: 1 to 6%, and a balance of Fe and unavoidable impurities and have an Md30 value of an indicator of an austenite stabilization degree satisfying -120Md3020, where Md30=497-462(C+N)-9.2Si-8.1Mn-13.7Cr-20(Ni+Cu)-18.5Mo
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