LATEST DEVELOPMENT AND APPLICATION OF Nb-BEARING HIGH STRENGTH PIPELINE STEELS

摘要：

　　In order to solve the pollution problem emerging in China recently,Chinas central government is making great efforts to raise the percentage of natural gas consumption in the Chinas primary energy mix,which needs to construct big pipelines to transport natural gas from the nations resource-rich western regions to the energy-starved east,as well as import from the Central Asia and Russia.With this mainstream trend,high strength,high toughness,heavy gauge,and large diameter pipeline steels are needed to improve the transportation efficiency.This paper describes the latest progresses in Nb-bearing high strength pipeline steels with regard to metallurgical design,development and application,including X80 coil with a thickness up to 22.0mm,X80 plate with a diameter as much as 1422mm,X80 plate with low-temperature requirements and low-Mn sour service X65 for harsh sour service environments.Moreover,based on widely accepted TMCP and HTP practices with low carbon and Nb micro-alloying design,this paper also investigated some new metallurgical phenomena based on powerful rolling mills and heavy ACC equipment.

关键词： Niobium TMCP HTP high strength pipeline steel heavy gauge large diameter

作者: Yongqing Zhang Chengjia Shang Aimin Guo Lei Zheng Xiulin Han

作者单位: CITIC Metal Co.,Ltd,Capital Mansion,Chaoyang district,Beijing,China University of Science and Technology Beijing,Beijing,China Shougang research institute of technology,Beijing,China Bohai petroleum Equipment Co.,Ltd,Hebei,China

会议类型: 国际会议

会议名称: Energy Materials 2014(第一届能源材料国际会议)

会议地点: 西安

会议语种:英文

页码: 583-595

在线出版日期: 2014-11-04（万方平台首次上网日期，不代表论文的发表时间）