What is the biggest difference between spiral submerged arc welded pipe and straight seam submerged arc welded pipe?
Spiral submerged arc welded pipes and longitudinal submerged arc welded pipes are carbon steel pipes that use submerged arc welding technology.
Submerged arc welding is a welding method in which the arc burns under a layer of flux. Its inherent advantages such as stable welding quality, high welding productivity, no arc, and less smoke and dust make it the main welding method in the production of important steel structures such as pressure vessels, pipes, box beams, and columns.
LSAW (straight seam submerged arc welding) is produced by pressing (rolling) a single medium-thick plate in a mold or forming machine and using double-sided submerged arc welding and diameter expansion. The finished product has complete specifications, has good toughness, plasticity, weld uniformity and density, and has the advantages of large pipe diameter, thick pipe wall, high pressure resistance, low temperature resistance, and strong corrosion resistance. It is widely used in the construction of long-distance oil and gas pipelines with high strength, high toughness and high quality.
SSAW steel pipe (spiral submerged arc welded steel pipe) is a pipe that is welded while forming so that its forward direction forms a forming angle with the center line of the formed pipe. The weld is in a spiral shape. The advantage is that steel pipes of various diameters can be produced with the same specifications.
main feature
Main features of straight seam submerged arc welded steel pipe:
Using pre-welding and precision welding technology, the welding process is stable and the weld quality is high. Welds are easy to conduct non-destructive testing on-site during production and use.
The range of product specifications is wide, and it can produce not only small diameter and large wall thickness steel pipes, but also large diameter and large wall thickness steel pipes.
Main features of SSAW steel pipe:
Spiral submerged arc welded pipe equipment has low investment, simple production process, low operating cost, and has the advantages of low-cost operation.
