The oxygen corrosion behavior of s 135 drill pipe steel in drill fluid 135钻杆钢在钻井液中的氧腐蚀行为
Non - piping steel 无缩孔钢
As to the study on application of higher grade of pipe steel , he considers that the higher grade of pipe steel can be adopted in gas transmission pipeline through the optimized design 对高等级管道钢的应用进行了重点研究与分析,认为经过优化设计,高等级管道钢可以应用于输气管道。
This paper analyzes the main composition and function of self - protection flux cored wire , presents the mechanical test results of welding x80 pipe steel ( developed by tianjin jinqiao company ) using the self - protection flux cored wire 摘要文章分析了自保护药芯焊丝的主要成分及作用,介绍了天津市金桥焊材集团有限公司研制的x80管道钢用自保护药芯焊丝的力学性能试验结果。