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发明公开
CN105405478A 一种高温合金无缝钢管 有权

一种高温合金无缝钢管
摘要：
一种高温合金无缝钢管，属于反应堆压力容器O形密封环用高温合金无缝钢管领域。本发明包括管体，所述管体中C的质量≤0.08%，Mn的质量≤0.35%，Si的质量≤0.35%、P的质量≤0.015%，S的质量≤0.015%，Cr的质量为17%-21%，Ni+Co的质量为50%-55%，Mo的质量为2.8%-3.3%，Nb+Ta的质量为4.75%-5.5%，Ti的质量为0.65%-1.15%，Al的质量为0.2%-0.8%，Co的质量≤1.0%，Ta的质量≤0.05%，B的质量≤0.006%，Cu的质量≤0.3%，Pb的质量≤0.005%，Fe的质量为余量的所占百分比本发明具有回弹量大，密封性好的优点。
摘要（英）：

A high temperature alloy seamless steel pipe belongs to the field of a high temperature alloy seamless steel pipe for a reactor pressure vessel O-shaped sealing ring. The high temperature alloy seamless steel pipe comprises a pipe body. the pipe body contains, by weight, C being less than or equal to 0.08%, Mn being less than or equal to 0.35%, Si being less than or equal to 0.35%, P being less than or equal to 0.015%, S being less than or equal to 0.015%, 17-21% of Cr, 50-55% of Ni+Co, 2.8-3.3% of Mo, 4.75-5.5% of Nb+Ta, 0.65-1.15% of Ti, 0.2-0.8% of Al, Co being less than or equal to 1.0%, Ta being less than or equal to 0.05%, B being less than or equal to 0.006%, Cu being less than or equal to 0.3%, Pb being less than or equal to 0.005%, and the rest of Fe. The high temperature alloy seamless steel pipe has advantages of high springback and good leakproofness.

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