大直径特厚壁NV E550海洋钻井平台桩腿支撑管的研发
Steel Pipe(2017)
Abstract
针对钻井平台桩腿支撑用管的服役条件及特点,从化学成分设计、冶炼工艺、轧制工艺、热处理工艺和配套的焊接工艺等方面进行研究,成功开发出满足DNV-OS-B101规范的φ355.6 mm×65 mm规格大直径特厚壁NV E550无缝钢管.检验结果表明:该无缝钢管具有高强度和优良的低温冲击韧性,性能组织均匀,可焊性良好,完全满足用户的设计和使用要求,并通过了DNV挪威船级社认证.
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