摘要
利用某钢管厂生产的不同批次三种成分体系X65管线钢管的检测数据,分析了钢管成分与性能的关系。结果表明,无论采用传统Mn-Mo-Nb系管线钢,还是Mn-Nb及Mn-Cr-Nb系管线钢,钢管的性能均能满足GB/T 9711—2017及API SPEC 5L等相关技术规范的要求。传统Mn-Mo-Nb系管线钢在低Mo、Nb条件下即可获得高的韧性;Mn-Nb及Mn-Cr-Nb系管线钢,管体及焊缝强度随w(Nb)增加而增加;然而,管体、热影响区及焊缝的韧性则随w(Nb)增加到0.050%~0.060%时获得较大的改善效果;Cr对韧性有一定改善作用,但作用不显著。
Based on the test data of X65 pipeline steel pipes of different batches with three systems of chemical composition produced by a steel pipe factory,the composition and performance of the steel pipes were analyzed.Results show that the mechanical properties of the steel pipes,either by the traditional Mn-Mo-Nb series pipeline steel or Mn-Nb and Mn-Cr-Nb series pipeline steels,can meet the requirements of GB/T 9711—2017,API SPEC 5L and related technical specifications.The traditional Mn-Mo-Nb pipeline steel can obtain high toughness under low Mo and Nb conditions.For Mn-Nb and Mn-Cr-Nb pipeline steels,the strength of pipe bodies and weld increases with the increase of Nb content.However,the toughness of the tube bodies,the heat affected zones and the weld metals were significantly improved when the Nb content increased to 0.050%~0.060%.Cr may also improve toughness,but the effect is not significant.
作者
李立豪
张永清
韩秀林
谷雨
乔桂英
肖福仁
LI Lihao;ZHANG Yongqing;HAN Xiulin;GU Yu;QIAO Guiying;XIAO Furen(Key Lab of Metastable Materials Science&Technology,College of Materials Science&Engineering,Yanshan University,Qinhuangdao 066004,Hebei,China;Hebei Key Lab for Optimizing Metal Product Technology and Performance,Qinhuangdao 066004,Hebei,China;Citic Microalloying Technology Center,Beijing 100004,China;North China Petroleum Steel Pipe Co.,Ltd.,Qingxian 062658,Hebei,China;School of Mechanical and Electrical Engineering,Zhoukou Normal University,Zhoukou 466000,Henan,China;School of Environment and Chemical Engineering,Yanshan University,Qinhuangdao 066004,Hebei,China)
出处
《焊管》
2022年第12期1-8,共8页
Welded Pipe and Tube
基金
河北省自然科学基金-高端钢铁联合基金“双相高强高应变海洋管线钢强塑化机制及组织性能调控”(项目编号E2021203069)
河北省创新能力提升计划项目“河北省金属产品工艺及性能优化控制实验室绩效补助经费”(项目编号22567609H)
国家自然科学基金“高强海底管线环焊缝的疲劳裂纹萌生扩展及断裂行为研究”(项目编号52001340)
中信金属-CBMM R&D项目“不同组织类型X65和X70管线钢大数据分析和焊接评价研究”(项目编号2020FWNB-30091)。
关键词
X65管线钢管
管体性能
焊缝
热影响区
X65 pipeline steel pipe
pipe performance
weld
heat affected zone
