X60螺旋埋弧焊管抗H_2S腐蚀性能研究  

Research on H_2S Corrosion Resistance Performance of X60 Helical Submerged Arc Welded(SAWH) Pipe

作　　者：梁根选[1,2] 

机构地区：[1]宝鸡石油钢管有限责任公司,陕西宝鸡721008 [2]国家石油天然气管材工程技术研究中心,陕西宝鸡721008

出　　处：《焊管》2011年第9期9-17,共9页Welded Pipe and Tube

摘　　要：针对我国油气输送管线建设中需要大量耐腐蚀钢管的需求,进行了耐H_2S环境腐蚀下的管线钢及输送钢管的研究工作,通过理化性能、氢致开裂、硫化物应力开裂等试验对X60管线钢和螺旋埋弧焊管进行了耐蚀性研究,取得了以下结果:通过对国外抗H_2S腐蚀焊管的技术条件分析研究,提出我国X60抗H_2S卷板技术要求和X60螺旋埋弧焊管抗H_2S腐蚀性能的要求,指出冶金工艺,尤其是S,P含量的控制是决定材料抗硫化氢腐蚀性能的主要因素;其次,钢中非金属夹杂物的含量、形态、分布以及显微组织的种类、形态对抗H_2S腐蚀性能也有重要的影响;对X60板材和优选焊接工艺生产的X60螺旋埋弧焊管进行了在低应力和高应力下的HIC和SSC试验,结果表明。Regarding to great demand for steel pipe with resistance to corrosion in the oil and gas pipeline construction in China, this article introduced the research work to pipeline steel and steel pipe under the anti-H2S condition, through physical and chemical performance, hydrogen-inductive crack （HIC）, sulfide stress cracking （SSC） and other tests, it carried out resistance to corrosion study to X60 pipeline steel and SAWH pipe, and achieved the following results. Through research and analysis on the resistance to H2S corrosion welded pipe from the abroad, it put forward resistance to H2S corrosion technical requirements of X60 HRC and X60 SAWH pipe. It pointed out that metallurgy process, especially control the content of S and P, which is the critical factor to determine the material performance to resistance to H2S corrosion; In addition, the amounts, shape, distribution and non-metallic inclusions in steel, as well as, the type, configuration of mierostructure also affected resistance to H2S corrosion. It conducted the tests of HIC and SSC under low and high stress conditions to X60 HRC and X60 SAWH pipe produced by optimized welding procedure. The test results showed that the mechanical performance of SAWH pipe and resistance to H2S performance indexes can meet the requirements of technical specification.The developed X60 resistance to H2S corrosion SAWH pipe is widely used in the domestic oil and gas pipelines, these pipelines are under good service.

关 键 词：X60管线钢 螺旋埋弧焊管 硫化物应力开裂 氢致开裂 

分 类 号：TE988.2[石油与天然气工程—石油机械设备]