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发明公开
CN103131951A 一种铁素体耐热钢 无效 - 撤回

一种铁素体耐热钢
摘要：
本发明公开了一种铁素体耐热钢，涉及超超临界燃煤火电站锅炉用耐高温、耐腐蚀的耐热合金钢，其化学成分质量百分比为：C≤0.10％，Cr8％-15％，W≤3.0％，Co≤3.0％，Si0.1-0.5%，Mn0.2-0.8%，Mo0.3-0.6%，V0.2-0.3%，Nb0.05-0.10%，N≤0.05％，Ta≤0.08％，余量是Fe和不可避免的杂质。该铁素体耐热钢可承受650℃的高温下使用，不仅具有优异的耐热性能，还具有良好的耐腐蚀性能。
摘要（英）：

The invention discloses a ferrite heat-resistant steel. The ferrite heat-resistant steel is a heat-resistant alloy steel which has high temperature resistance and corrosion resistance and is used for an ultra supercritical fire-coal thermal power station boiler. The ferrite heat-resistant steel comprises, by mass, less than or equal to 0.10% of C, 8 to 15% of Cr, less than or equal to 3.0% of W, less than or equal to 3.0% of Co, 0.1 to 0.5% of Si, 0.2 to 0.8% of Mn, 0.3 to 0.6% of Mo, 0.2 to 0.3% of V, 0.05 to 0.10% of Nb, less than or equal to 0.05% of N, less than or equal to 0.08% of Ta, and the balance Fe and unavoidable impurities. The ferrite heat-resistant steel can be used at a high temperature of 650 DEG C and has excellent heat resistance and good corrosion resistance.

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