焊管2016，Vol.39Issue(3)：5-11,7.DOI:10.19291/j.cnki.1001-3938.2016.03.002
低Mn高Nb耐酸性X65MS HFW焊管性能研究
Research on Properties of X65MS Low Mn High Nb Sour Resistance HFW Pipe
摘要
Abstract
Under acidic loading condition, in order to make steel pipe meet the requirements of transporting large flow acid oil and gas under high pressure, adopting low Mn high Nb acid resistance hot-rolled coil, after optimization, forming control and welding technology, the low Mn high Nb X65MS acid resistance Ф323.9 mm ×9.5 mm HFW pipe was developed. The mechanical properties test results indicated that the performance of trial-produced welded pipe reach X70 steel grade standard requirements,the impact energy of weld seam is greater than 136 J under-40℃. The flattening test showed no cracks appear in weld area when the pipe ring was compressed to attached, and the highest hardness of HFW pipe only 229 HV10 . The HIC corrosion tests showed that no hydrogen bubbles appear in the surface of pipe body and welded joints, the crack rate of samples profile is zero. The SSCC corrosion tests and the groove corrosion tests both meet the requirements of the revelant standards. It proved that the developed X65MS acid resistance corrosion HFW welded is with very excellent anti HIC/SSCC performance and grooving corrosion resistant performance, and can be applied in safe transportation of oil and gas with hydrogen sulfide.关键词
焊管/HFW焊管/X65MS管线钢/HIC/SSCC/沟腐蚀/包辛格效应Key words
welded pipe/HFW pipe/X65MS pipeline steel/HIC/SSCC/groove corrosion/Bauschinger effect分类
能源科技引用本文复制引用
黄晓辉,毕宗岳,张永青,刘海璋,牛辉,王晰,徐小刚,陈长青..低Mn高Nb耐酸性X65MS HFW焊管性能研究[J].焊管,2016,39(3):5-11,7.基金项目
国家科技支撑计划"高强度耐腐蚀石油天然气集输与输送用管线钢生产技术"(项目号2011BAE25B03) （项目号2011BAE25B03）
中信微合金化技术中心资助项目"低锰耐酸管线钢X65工业试制和性能评价"(项目号CITIC-CBMM). （项目号CITIC-CBMM）
