ERW steel tube, SSAW steel tube and LSAW steel tube
Hunan Great Steel Pipe is a leading steel pipe manufacturer and exporter. We provide a large number of carbon steel pipe for sale, including ERW steel pipe, SSAW steel pipe, LSAW steel pipe and so on. And Next, Great Steel Pipe will share differences among them for all of you.
ERW Steel Pipe
The ERW steel pipe applied wide hot rolling steel profile as raw material, and went through pre-bending, continuous forming, welding, straightening, cutting and other processes. So the ERW steel pipe has short weld joints, high dimensional accuracy, uniform thickness, and excellent surface and can bear high pressure.
Its disdvantages inckudes small diameter and thin wall, and the weld joints are easy to be eroded. The drawback of ERW steel pipe is that it only has small and medium-caliber thin-walled tube, and welding is easy to produce gray leaf spot. So ERW steel pipe is more widely used in areas of city gas, crude oil transportation.
SSAW Steel Pipe
SSAW steel pipe has spiral welding joints and the pipes are welded and formed at the same time. The strip steel with the same specification can produce SSAW pipes with various diameters. The welding joints can avoid major stress and have better force resistance. Disadvantages of SSAW steel pipe are poor geometrical diameters, longer welding joints and joints are easily to have cracks, porosity and other welding defects. According to the design specification of oil and gas pipeline.
LSAW Steel Pipe
LSAW steel pipe uses single plate steel as raw material, applied double-sided submerged arc welding. The finished products have larger specifications and the welding joints have excellent ductility, plasticity and good sealing. LSAW pipes have large diameter, thick wall and can withstand high pressure and low temperature. LSAW pipes play a major role in oil and gas pipelines with features of high strength, high quality and long distance.
ERW Steel Pipe
The ERW steel pipe applied wide hot rolling steel profile as raw material, and went through pre-bending, continuous forming, welding, straightening, cutting and other processes. So the ERW steel pipe has short weld joints, high dimensional accuracy, uniform thickness, and excellent surface and can bear high pressure.
Its disdvantages inckudes small diameter and thin wall, and the weld joints are easy to be eroded. The drawback of ERW steel pipe is that it only has small and medium-caliber thin-walled tube, and welding is easy to produce gray leaf spot. So ERW steel pipe is more widely used in areas of city gas, crude oil transportation.
SSAW Steel Pipe
SSAW steel pipe has spiral welding joints and the pipes are welded and formed at the same time. The strip steel with the same specification can produce SSAW pipes with various diameters. The welding joints can avoid major stress and have better force resistance. Disadvantages of SSAW steel pipe are poor geometrical diameters, longer welding joints and joints are easily to have cracks, porosity and other welding defects. According to the design specification of oil and gas pipeline.
LSAW Steel Pipe
LSAW steel pipe uses single plate steel as raw material, applied double-sided submerged arc welding. The finished products have larger specifications and the welding joints have excellent ductility, plasticity and good sealing. LSAW pipes have large diameter, thick wall and can withstand high pressure and low temperature. LSAW pipes play a major role in oil and gas pipelines with features of high strength, high quality and long distance.
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