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Ev> Blog> Standard Classification of Spiral Steel Pipes

Standard Classification of Spiral Steel Pipes

August 30, 2018
Pressure-bearing fluid transportation, spiral submerged arc welded steel pipe SY5036-2000, mainly used for the transportation of petroleum, natural gas pipelines;
Spiral seam high-frequency welded steel pipe SY5038-2000 for pressure fluid transport, welded by high-frequency lap welding method, for high pressure welded steel pipe with spiral seam for pressurized fluid transport. Steel tube has strong pressure bearing capacity and good plasticity, which is convenient for welding and processing;
General low-pressure fluid transmission, with spiral submerged arc welded steel pipe SY5037-2000, using two-sided automatic submerged arc welding or single-sided welding method for the general use of water, gas, air and steam and other low-pressure fluid transport submerged arc welded steel pipe.
Spiral steel pipe commonly used standards are generally divided into: SY/T5037-2008 (parts, also known as common fluid transmission pipeline with spiral seam submerged arc welded steel pipe), GB/T9711.1-2008 (GB, also known as the oil and gas industry transport steel pipe Technical conditions for delivery Part I: Grade A steel pipes (required strictly GB/T9711.2 Grade B steel pipes)), API-5L (American Oil Institute, also called pipeline steel pipes; which are divided into two grades of PSL1 and PSL2), SY/T5040-2008 (Spiral welded steel pipe for piles).
SY/T5037-2008 is the Ministry of Petroleum set up standards are generally called the standard
GB/T9711.1-2008 National spiral pipe, oil and gas industry transmission steel pipe, Grade A general low pressure fluid conveying spiral seam high frequency welded steel pipe (SY5039-2000) is a hot rolled steel strip coiled tube, regular temperature spiral molding High-frequency lap welding is used to weld high-frequency spiral welded steel pipe for general low-pressure fluid delivery.
Spiral welded steel pipe for piles (SY5040-2000) is made of hot-rolled steel strips as tube blanks, and is usually thermo-screwed. It is made by double-sided submerged arc welding or high-frequency welding. It is used for civil construction structures, piers and bridges. Basic pile steel pipe
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