DN1200 SSAW Pipes

Why LSAW pipes are the "customization pioneer"?

In the demand for thick-walled pipes with wall thickness ≥16mm, the "single steel plate forming" process of LSAW pipes can avoid the defects of multi-layer splicing and become a "customization pioneer" in special industries such as chemical industry and nuclear power. Huayang's thick-walled LSAW pipe once provided a customized solution for a nuclear power auxiliary pipeline project.

In 2023, a nuclear power auxiliary cooling water pipeline project needs a special LSAW pipe with DN800 and a wall thickness of 25mm, and the requirement for weld flaw detection is 100% defect-free. Huayang uses a 4000-ton hydraulic press for U-O forming to ensure that the roundness error of thick-walled tube blank is controlled within 1 mm; In the welding process, 16 parameters were monitored in real time through AI. Finally, the qualified rate of ultrasonic flaw detection of this batch of pipes reached 99.8%, far exceeding the industry average. The sales manager of Huayang revealed: "The customization of thick-walled LSAW pipes is our advantage. In 2024, such orders accounted for 30% of the total orders of LSAW pipes, and clients covered many high-demand industries such as chemical industry and nuclear power."