焊管Issue(5)：16-19,4.
超高强度X100管线钢埋弧焊焊丝研制
Development of SAW Welding Wire for Ultra-high Strength X100 Pipeline Steel
摘要
Abstract
Adopting Mn-Ni-Mo-Ti-B as main alloy system, a kind of SAW welding wire was developed, which can be applied to X100 ultra high strength pipeline steel. This welding wire is compatible with the corresponding BG-SJ101H2 flux. According to the standard requirements of Low-alloy Steel Electrodes and Fluxed for Submerged Arc Welding GB/T 12470-2003, through test of deposited metal, the result showed that the yield strength is 685 MPa, the tensile strength is 780 MPa, and the impact energy value is more than 27 J under-40 ℃After X100 steel pipe SAW welding, all the weld appearance, processing performance and mechanical properties are good, the tensile strength is more than 780 MPa, and the impact toughness is 100 J at -10 ℃. It realized good matching with high strength and high toughness, and can meet the requirements of X100 SAW pipe performance.关键词
焊接/X100管线钢/埋弧焊/焊丝Key words
welding/X100 pipeline steel/submerged arc welding/welding wire分类
矿业与冶金引用本文复制引用
毕宗岳,牛辉,温宝京,赵红波,徐红庄,刘刚伟..超高强度X100管线钢埋弧焊焊丝研制[J].焊管,2014,(5):16-19,4.基金项目
国家科技支撑计划课题超高强度油气输送管材关键技术研究（2011BAE35B01）。 （）
