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    酸性環(huán)境X70QS管線管用無(wú)縫鋼管的研制

    Development of X70QS Seamless Steel Pipe for Linepipe for Sour Service

    • 摘要: 介紹國(guó)產(chǎn)酸性環(huán)境X70QS管線管用無(wú)縫鋼管的研發(fā)情況。簡(jiǎn)述X70QS管線管用無(wú)縫鋼管的化學(xué)成分、生產(chǎn)工藝流程，分析生產(chǎn)的Φ168.3 mm×18.26 mm規(guī)格X70QS管線管用無(wú)縫鋼管的拉伸性能、沖擊韌性、硬度、金相組織和抗腐蝕性能。分析認(rèn)為：該X70QS管線管用無(wú)縫鋼管的各項(xiàng)性能指標(biāo)可以滿足標(biāo)準(zhǔn)和用戶的需求。

       

      Abstract: Introduced in this paper is the research and development of X70QS seamless steel pipe for linepipe for sour service.Briefed are the chemical composition and the manufacturing process flow of X70QS seamless steel pipe for linepipe.Analyzed are the tensile strength, the impact toughness, the hardness, the metallographic structure and the corrosion resistance of the produced Φ168.3 mm×18.26 mm X70QS seamless steel pipe for linepipe.The analysis shows that all the mechanical properties of the X70QS seamless steel pipe for linepipe can satisfy the requirements of relevant standards and the needs of users.

       

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