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    PSL2 X65QO/X65QS海洋抗腐蝕管線用無縫鋼管生產(chǎn)實踐

    Practice of Production of PSL2 X65QO/X65QS Seamless Steel Pipes for Service of Submarine Anti-corrosion Pipeline

    • 摘要: 從產(chǎn)品技術(shù)難點、鋼種成分設(shè)計、生產(chǎn)工藝、熱處理工藝等方面，介紹了PSL2 X65QO/X65QS海洋抗腐蝕管線用無縫鋼管的生產(chǎn)情況，并統(tǒng)計分析其力學(xué)性能、管端內(nèi)徑不圓度等；依據(jù)相關(guān)標準進行HIC和SSC腐蝕試驗及焊接工藝評定試驗。結(jié)果表明：PSL2 X65QO/X65QS海洋抗腐蝕管線用無縫鋼管具有強度波動變化小、均勻延伸率大、低溫沖擊韌性高、硬度低，且可焊性好、抗HIC和SSC性能優(yōu)異等特點，滿足用戶要求。

       

      Abstract: Described here in the essay are the production of the PSL2 X65QO/X65QS seamless steel pipe for service of submarine anti-corrosion pipeline, involving such aspects as product technical difficulties, design of the steel type chemical composition, manufacturing process, and heat treatment process etc.And statistically analyzed are the mechanical properties and the end inner roundness of the said pipe.Moreover HIC test, SSC test and test for welding process evaluation are also conducted to the pipe, as per applicable specifications.The test results demonstrate that the PSL2 X65QO/X65QS seamless steel pipe for service of submarine anti-corrosion pipeline is in possesion of such excellent mechanical properties as slightly-fluctuated strength, high uniform elongation, low impact toughness and low hardness, good weldability and remarkable HIC and SSC resistance, having been satisfactory to relevant customer requirements.

       

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