Longitudinal Submerged-Arc Welded Steel Pipe

API 5L lsaw steel pipe for slit conveying pictures:

Plant View

Quality Control

Our company has established a complete joint quality control system of ISO9001:2008/API Q1/pressure pipeline compents production, implements institutionalized management, programmed operation,and achieved nine 100% qualified controlling rate, which are 100% ultrasonic flaw detection for the material plate, 100% automatic on-line UT test after welding, 100% whole-length seam X-ray test, 100% inside weld line industrial TV test; 100% hydrostatic test, 100% automatic on-line seam UT test after hydrostatic test, expanding 100% X-ray test and make X-ray film or picture record on pipe ends, 100% pipe appearance and plate appearance inspection, and all above tests are proceeded by quality control department.The purpose is to ensure our product to meet standard requirement and satisfy the users.

Mechanics Lab:

Metallurgical Microscope:

Universal Testing Machine:

certificates: