This study reviews the development of Baosteel' s pipeline steel over the last 20 years. Energy demand accelerates the development of high-grade pipeline steel as well as modem petroleum and natural gas pipeline cons...This study reviews the development of Baosteel' s pipeline steel over the last 20 years. Energy demand accelerates the development of high-grade pipeline steel as well as modem petroleum and natural gas pipeline construction. Pipeline steel is a kind of typical modem microalloyed steel produced via thermo-mechanical controlled processing. The development process of pipeline steel at Baosteel represents the course of the technological progress of pipeline steel in China. In the last two decades, Baosteel' s pipeline steel has been developed from a single product of hot- rolled strips to a variety of products including hot-rolled strips, heavy plates, high-frequency electric resistance welded (HFW) pipes and U-ing-O-ing-Expanding (UOE) welded pipes. Moreover, the proportion of the HFW and the UOE welded pipes has been increasing year by year. UOE longitudinal submerged arc welding (SAW) pipes have become the leading product of strategic significance in Baosteel' s pipeline steel family. Over the last 20 years, Baosteel' s pipeline steel products have shifted from "ferrite + pearlite" X52 to "acicular ferrite" XT0 and X80, and Baosteel has developed hydrogen-induced cracking (HIC) resistant pipeline steel. Baosteel' s pipeline steel products have been applied in variety of geographical areas,including deserts, Gobi, mountains,plains as well as the ocean. And both the X100 and the X120 ultra high strength pipeline steels have been produced on a trial basis. Baosteel has accumulatively produced 6.5 Mt of pipeline steel for both domestic and overseas projects. Baosteel will continue strengthening its strategic cooperation with oil companies, and conducting research on ultra high strength pipeline steel, pipeline steel for strain-based design and submarine pipeline steel,etc. , so as to meet the need of construction in the future.展开更多
介绍Φ1 524 mm×20.3 mm X90钢级螺旋缝埋弧焊管的研发过程.优化设计钢管制造工艺,重点开发钢管的成型和焊接工艺,通过合理控制成型应力、焊接坡口钝边、焊接速度、低线能量输入等工艺设计指标,获得了性能优良的焊接接头.解决了厚...介绍Φ1 524 mm×20.3 mm X90钢级螺旋缝埋弧焊管的研发过程.优化设计钢管制造工艺,重点开发钢管的成型和焊接工艺,通过合理控制成型应力、焊接坡口钝边、焊接速度、低线能量输入等工艺设计指标,获得了性能优良的焊接接头.解决了厚壁、高钢级焊管生产中常见的焊缝及热影响区低温冲击韧性不稳定的问题.研发出的Φ1 524 mm×20.3 mm X90钢级螺旋缝埋弧焊管经第三方检测评价,其质量指标完全满足产品技术条件要求,具备批量生产条件.展开更多
文摘This study reviews the development of Baosteel' s pipeline steel over the last 20 years. Energy demand accelerates the development of high-grade pipeline steel as well as modem petroleum and natural gas pipeline construction. Pipeline steel is a kind of typical modem microalloyed steel produced via thermo-mechanical controlled processing. The development process of pipeline steel at Baosteel represents the course of the technological progress of pipeline steel in China. In the last two decades, Baosteel' s pipeline steel has been developed from a single product of hot- rolled strips to a variety of products including hot-rolled strips, heavy plates, high-frequency electric resistance welded (HFW) pipes and U-ing-O-ing-Expanding (UOE) welded pipes. Moreover, the proportion of the HFW and the UOE welded pipes has been increasing year by year. UOE longitudinal submerged arc welding (SAW) pipes have become the leading product of strategic significance in Baosteel' s pipeline steel family. Over the last 20 years, Baosteel' s pipeline steel products have shifted from "ferrite + pearlite" X52 to "acicular ferrite" XT0 and X80, and Baosteel has developed hydrogen-induced cracking (HIC) resistant pipeline steel. Baosteel' s pipeline steel products have been applied in variety of geographical areas,including deserts, Gobi, mountains,plains as well as the ocean. And both the X100 and the X120 ultra high strength pipeline steels have been produced on a trial basis. Baosteel has accumulatively produced 6.5 Mt of pipeline steel for both domestic and overseas projects. Baosteel will continue strengthening its strategic cooperation with oil companies, and conducting research on ultra high strength pipeline steel, pipeline steel for strain-based design and submarine pipeline steel,etc. , so as to meet the need of construction in the future.
文摘介绍Φ1 524 mm×20.3 mm X90钢级螺旋缝埋弧焊管的研发过程.优化设计钢管制造工艺,重点开发钢管的成型和焊接工艺,通过合理控制成型应力、焊接坡口钝边、焊接速度、低线能量输入等工艺设计指标,获得了性能优良的焊接接头.解决了厚壁、高钢级焊管生产中常见的焊缝及热影响区低温冲击韧性不稳定的问题.研发出的Φ1 524 mm×20.3 mm X90钢级螺旋缝埋弧焊管经第三方检测评价,其质量指标完全满足产品技术条件要求,具备批量生产条件.