X70 pipeline site welding technology and quality control points
The X70 pipeline steel is API 5L pipeline steel with a minimum yield strength of 70300psi, or 485 MPa.In fact, in the standard of API 5L, the pipeline steel pipe is divided into two grades, that is, PLS1 steel pipe that only requires strength grade and PSL2 steel pipe that requires more performance parameters. PSL2 steel pipe is required to mark its rolling method, such as thermo-mechanical controlled rolling, marked with M, and Q for quenching.
Cangzhou Steel Pipe Group (CSPG)Co.,Ltd.
No.92 JieFang East Road ,Cangzhou City, Hebei,P.R.China.
CSPG has more than eighteen years history company which located in Lecong Iron and Steel World, a well-known steel distribution center in China, with superior geographical position and convenient water and land transportation.
We are a direct-selling manufacturer specializing in the research and development of spiral steel pipes, steel spiral pipes, anti-corrosion steel pipes inside and outside. Since its inception, the company has been guided by a brand-new thinking of steel pipe product market based on the business philosophy of honesty, pragmatism and knowledge-seeking.