焊管2017，Vol.40Issue(4)：1-7,7.DOI:10.19291/j.cnki.1001-3938.2017.04.001
X80级Φ1422 mm×21.4 mm大直径厚壁焊管的研发及性能研究
Development and Performance Study of X80 GradeΦ1422 mm×21.4 mm Large Diameter and Thick Wall Welded Pipe
摘要
Abstract
In order to realize the localization of large diameter and thick wall welded pipe, after several rounds of single furnace trial production and several rounds of thousand tons trial production, the domestic X80 grade Φ1422 mm×21.4 mm large diameter thick wall SAWH/SAWL pipe was successfully developed, which conducted by Baoji Petroleum Steel Pipe Co., Ltd., Taiyuan Iron and Steel Co., Ltd., Shougang Group, Shashi Iron and Steel Co., Ltd., and other steel mills, and a number of performance tests were conducted. The results showed that the yield strength of SAWH pipe body is 574~681 MPa, the tensile strength is 653~759 MPa, the average impact energy is 373 J at-10℃. The yield strength of SAWL pipe body is 564~627 MPa, the tensile strength is 641~694 MPa, the average impact energy is 460 J at-10℃. The average DWTT shear area of SAWH/SAWL pipe is 96%, various performance indicators can meet technical requirements of X801422 mm ×21.4 mm steel pipes used for Russia-China Eastern Pipeline, it indicated that China has the ability of industrialized batch production of large diameter thick wall welded pipe.关键词
焊管/X80/大直径/厚壁/螺旋焊管/直缝焊管/国产化Key words
welded pipe/X80/large diameter/thick wall/SAWH pipe/SAWL pipe/localization分类
能源科技引用本文复制引用
毕宗岳,黄晓辉,牛辉,赵红波,牛爱军,包志刚,刘斌..X80级Φ1422 mm×21.4 mm大直径厚壁焊管的研发及性能研究[J].焊管,2017,40(4):1-7,7.基金项目
中国石油天然气股份有限公司科技攻关专项, 第三代高压大输量油气管道建设关键技术研究课题"Φ1422 mm X80管线钢管应用技术研究"(项目号2012E-2801-09). （项目号2012E-2801-09）
