Seamless Pipe Supplier From CHINA

How to Ensure the Reliability of Mass Production?

The reliability of pipeline materials is crucial to the safe operation of oil and gas pipelines, and the mature quality control system of LSAW steel pipes provides a strong guarantee for their stable quality. From the selection of raw materials to the final delivery of finished products, LSAW steel pipes go through multiple strict quality inspection links. In the raw material stage, the medium and heavy plates used for production must pass ultrasonic flaw detection and chemical composition analysis to ensure that there are no internal defects and the composition meets the standards.

In the welding process, real-time monitoring of welding parameters such as current, voltage and welding speed is carried out to ensure the stability of weld quality. After welding, non-destructive testing methods such as ultrasonic flaw detection and X-ray flaw detection are used to comprehensively inspect the welds, and the qualified rate of welds can reach more than 99.5%. Finally, the hydrostatic test is carried out. The pipeline is kept under pressure for 10-30 minutes under 1.5 times the design pressure to ensure that there is no leakage. The mature quality control system makes LSAW steel pipes have stable quality in mass production, which is an important reason for their wide application in large-scale oil and gas pipeline projects.