Piling Tube X52 28 Inch Diameter 15.88MM Thickness LSAW Steel Pipe

Submerged arc welding has been developed into double - wire submerged arc welding, and multi - wire submerged arc welding, further improve the efficiency.Widely used in steel structure, pile driving, fluid conveying, long - distance pipeline and other places.

LSAW steel pipe has a wide range of finished specifications, good toughness, plasticity, uniformity and compactness of weld, and has the advantages of large pipe diameter, thick pipe wall, high pressure resistance, low temperature resistance and strong corrosion resistance.In the construction of high strength and high quality long distance oil and gas pipelines, the required steel pipes are mostly large-diameter thick wall straight seam submerged arc welded pipes.According to API standards, in large oil and gas pipelineLSAW steel pipe (Longitudinally Submerged Arc Welding (LSAW) is straight seam Submerged Arc Welding steel pipe professional express terms, is based on single thicker plate as raw material, the steel in the mold or molding machine medium-voltage (roll) into the pipe, using double-sided Submerged Arc Welding of pipes and hole enlargement production.

PSL is short for product specification level.Line pipe product specification level is divided into PSL1 and PSL2, also can say quality grades are divided into PSL1 and PSL2.PSL2 above PSL1, these two levels is not only different inspection requirements, and chemical composition, mechanical performance requirements are different, so the order in API 5 l, the terms of the contract in addition to indicate the specifications and grade of steel usually indicators, must also indicate the level of product specification, namely PSL1 or PSL2.PSL2.