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Invention Publication
CN105803318A 一种耐高温炉胆用奥氏体不锈钢 无效 - 驳回

一种耐高温炉胆用奥氏体不锈钢
Abstract:
本发明涉及一种耐高温炉胆用奥氏体不锈钢，按质量百分比组成为：Cr：24～26%，Ni：19～21%，Si：0.3～0.8%，C：0.02～0.06%，Mn：1.0～1.5%，W：1.5～2.5%，N≤0.2%，P≤0.04%，S≤0.03%，余量为Fe。该钢种可以提高比310S耐热不锈钢更好的耐高温蠕变性能及抗氧化性能，可以在1000℃以上使用时间更长。
Abstract(English):

The invention relates to high-temperature-resistant austenitic stainless steel for a furnace pipe. The high-temperature-resistant austenitic stainless steel comprises the following components in percentage by mass: 24-26% of Cr, 19-21% of Ni, 0.3-0.8% of Si, 0.02-0.06% of C, 1.0-1.5% of Mn, 1.5-2.5% of W, less than or equal to 0.2% of N, less than or equal to 0.04% of P, less than or equal to 0.03% of S and the balance of Fe. According to the high-temperature-resistant austenitic stainless steel, high-temperature creep resistance and oxidation resistance which are better than those of 310 heat-resistant stainless steel are provided; and the high-temperature-resistant austenitic stainless steel can be used for a longer time at a temperature above 1000 DEG C.

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