In the field of steel pipe engineering, X65 LSAW double-sided submerged arc welded steel pipe has become the preferred material for many projects due to its excellent quality of smooth surface and no defects.
X65 LSAW double-sided submerged arc welded steel pipe is produced by an advanced straight seam submerged arc welding process. This process presses (rolls) the steel plate into a tube billet in a mold or a forming machine welds it by double-sided submerged arc welding, and expands the diameter. During the forming process, the steel plate undergoes precise pre-bending, forming, and pre-welding processes to ensure the accurate shape and size of the tube billet. Double-sided submerged arc welding ensures the quality and uniformity of the weld, the welding process is stable, and the weld is easy to achieve non-destructive testing during the production process and non-destructive testing review in the field during use. The expansion treatment further improves the geometric dimensional accuracy of the steel pipe and makes the internal stress of the steel pipe small and evenly distributed, effectively preventing stress corrosion cracking. After this series of rigorous process flows, the surface of the welded steel pipe is smooth, without obvious welding defects such as undercuts and weld nodules.
To ensure that the surface of the X65 LSAW double-sided submerged arc welded steel pipe is smooth and defect-free, strict quality inspections are implemented during the production process. Starting from the inspection of raw materials entering the factory, the chemical composition and mechanical properties of the steel plate are strictly controlled. During the production process, advanced testing equipment is used to monitor the appearance quality and dimensional accuracy of the weld in real-time. Before the finished product leaves the factory, a comprehensive quality inspection is also required, including ultrasonic flaw detection and X-ray flaw detection, to ensure that there are no defects inside and on the surface of the welded steel pipe. Through these strict quality inspection measures, the appearance of defective products is effectively eliminated, ensuring that each welded steel pipe meets high-quality standards.
The smooth and defect-free surface of the X65 LSAW double-sided submerged arc welded steel pipe has made it widely used in many fields. In the field of oil and natural gas transportation, its smooth surface reduces the friction resistance of the fluid in the steel pipe, improves transportation efficiency, and reduces the risk of steel pipe corrosion, ensuring the safety and stability of energy transportation. In chemical, electric power, and other industries, it can also meet the high requirements for steel pipe quality and provide reliable guarantees for the transportation of various media.
X65 LSAW double-sided submerged arc welded steel pipe has shown strong competitiveness in the field of steel pipe engineering with its excellent quality of smooth surface and no defects. Choosing X65 LSAW double-sided submerged arc welded steel pipe means choosing a high-quality and high-performance steel pipe solution.
Post time: Jun-25-2025