海底用-29℃低温抗酸直缝埋弧焊管研制  

Development of -29℃ Low Temperature and Acid Resistant SAWL Pipe for Submarine Service

作　　者：赵与越 赵波 王斌[1] ZHAO Yuyue;ZHAO Bo;WANG Bin(CNPC Bohai Equipment Manufacturing Co.,Ltd.,Tianjin 300457,China)

机构地区：[1]中国石油集团渤海石油装备制造有限公司,天津300457

出　　处：《钢管》2023年第2期35-38,共4页Steel Pipe

摘　　要：分析了国内某钢厂生产的X65MOS级钢板和所制的φ762 mm×22.2 mm直缝埋弧焊钢管的力学性能、化学成分及显微组织等,研究了用于国外某海底低温抗酸的X65MOS钢级φ762 mm×22.2 mm直缝埋弧焊钢管及钢板理化性能,从而系统地掌握了X65MOS钢级φ762 mm×22.2 mm直缝埋弧焊钢管的制造能力。结果表明,所研制的直缝埋弧焊管各项性能指标均达到国外某海底低温抗酸X65MOS钢级φ762 mm×22.2 mm钢管的技术要求。同时,母材和焊缝经抗氢致开裂试验后试样均无裂纹;焊缝经抗硫化物应力腐蚀试验后试样没有裂纹,表明钢管具有良好的耐硫化氢腐蚀性能。Analyzed here in the paper are the mechanical properties,the chemical composition and the micro structure,etc.of the X65MOS steel plate and the φ762 mm×22.2 mm SAWL weld pipe as made with the said plate both of which are produced by a certain domestic steel works.And both the physical and chemical properties of the said steel plate and weld pipe as to be used by a certain foreign user for low-temperature submarine service are studied so as to systematically grasp the manufacture ability of the said weld pipe.It is regarded via the analysis result that the said weld pipe as researched and developed has met applicable foreign technical requirements.Moreover the specimens of both the base metal and the weld show no cracks via the HIC test.Likely the weld proper also shows no cracks via the SSC test,which demonstrates that the steel weld pipe possesses good SSC resistance.

关 键 词：直缝埋弧焊钢管 X65MOS 化学成分 力学性能 氢致开裂 硫化物应力腐蚀 

分 类 号：TG457.6[金属学及工艺—焊接] TE95[石油与天然气工程—石油机械设备]