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AUSTENITIC STEEL EXCELLENT IN HIGH TEMPERATURE STRENGTH COMPRISING COPPER
AUSTENITIC STEEL EXCELLENT IN HIGH TEMPERATURE STRENGTH COMPRISING COPPER
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机译：含铜的高温强度高的奥氏体钢
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摘要
The present invention is a heat resistant stainless steel used at high temperatures such as a turbocharger or automobile exhaust system, and is produced by reducing the content of nickel (Ni) and chromium (Cr), which are expensive alloy elements contained in the alloy in large quantities. It is an object of the present invention to provide an austenitic steel which further reduces cost and further improves stability at high temperatures. High temperature austenitic steel according to the present invention is carbon (C): 0.35 ~ 0.5% by weight, silicon (Si): 1.0 ~ 2.0% by weight, manganese (Mn): 5.0 ~ 8.0% by weight, nickel (Ni): 15.5 ~ 18.5% by weight, chromium (Cr): 20-23% by weight, copper (Cu): 0.5-3.5% by weight, containing the remaining iron (Fe) and unavoidable impurities, manganese for the nickel (Ni) content of the alloying elements The ratio of the content of (Mn), C Mn / C Ni is characterized in that 0.3 to 0.6.
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机译：本发明是在涡轮增压器或汽车排气系统等高温下使用的耐热不锈钢，其是通过降低镍（Ni）和铬（Cr）的含量而制成的，镍是镍合金中昂贵的合金元素。大批量。本发明的目的是提供一种奥氏体钢，其进一步降低了成本并进一步提高了高温下的稳定性。根据本发明的高温奥氏体钢是碳（C）：0.35〜0.5重量％，硅（Si）：1.0〜2.0重量％，锰（Mn）：5.0〜8.0重量％，镍（Ni） ：15.5〜18.5％（重量），铬（Cr）：20-23％（重量），铜（Cu）：0.5-3.5％（重量），其中含有剩余的铁（Fe）和不可避免的杂质，镍（Ni）的锰合金元素的含量特征在于，（Mn），C Mn / C Ni 的含量比为0.3〜0.6。
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