Characteristics of large-diameter straight seam submerged arc welded steel pipes
Dec 18,2025
Large caliber and thick wall: The outer diameter range can reach 16 to 56 inches (approximately 406 to 1422 millimeters), and the wall thickness range is 0.312 to 2 inches (approximately 7.9 to 50.8 millimeters), meeting the needs of high-pressure and high-strength transportation.
High quality welds: Adopting double-sided automatic submerged arc welding technology, the weld quality is stable, the defect rate is low, and the pressure bearing capacity is high.
Corrosion resistance and low temperature performance: Some products have significantly improved corrosion resistance through anti-corrosion coating or galvanizing treatment, while also possessing low temperature resistance characteristics.
Low residual stress: The forming process ensures uniform distribution of residual stress in steel pipes, reducing the risk of deformation during use.
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