钢管2026，Vol.55Issue(4)：55-60,6.DOI:10.19938/j.steelpipe.1001-2311.2026.4.55.60
L360MH纯氢输送用管线钢板及其直缝埋弧焊管开发
Development of L360MH Steel Plate for Making SAWL Welded Pipe for Pure Hydrogen Pipeline Service
摘要
Abstract
Addressing the demand of the W est-East Hydrogen Transmission Pipeline Project,the L360MH steel plate together with the Φ610 mm SAWL welded pipe both having all the excellent mechanical properties is developed by means of research on design of the chemical composition,the TMCP(thermal-mechanical control process)and the pro-cess parameters.It is revealed via the hydrogen compatibility test and the HIC test that comparing with the nitrogen envi-ronment,the fracture area reduction and the post-fracture elongation of the base material of the L360MH hydrogen-trans-mission purposed steel pipe,the welded joint and the welding overlay metal are remarkably reduced,but still meet the technical requirements of the said project;though the tensile strength is slightly fluctuated,it is generally on the rise;hydrogen damages the base material most seriously,and the fracture toughness is 117.23 MPa·m1/2;the fatigue life exce-eds 300 000 times;the HIC resistance is excellent.关键词
直缝埋弧焊管/管线钢/输氢/氢相容性试验Key words
SAWL pipe/pipeline steel/hydrogen transmission/hydrogen compatibility test引用本文复制引用
韩启彪,厉成龙,张雷,马忠伟,郝燕森..L360MH纯氢输送用管线钢板及其直缝埋弧焊管开发[J].钢管,2026,55(4):55-60,6.基金项目
山东省重点研发计划(重大科技创新工程)项目(编号:2023CXGC010310) （重大科技创新工程）
