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Spiral steel pipe
Spiral steel pipe
The spiral steel pipe is a type of spiral seam steel pipe made of rolled strip steel plates through extrusion forming at a normal temperature and automatic double-wire double-sided submerged-arc welding. This production process is characterized by a short production period, a big caliber and a low cost. It is applicable to long-distance transmission pipelines for delivering water, vapor, petroleum, natural gas, etc.
Commonly used materials include Q235B, Q345(16Mn), L245(B), L290(X42), L320(X46), L360(X52), L390(X56), L415(X60), L450(X65), L485(X70), L555(X80), L290NB/MB(X42N/M), L360NB/MB(X52N/M), L390NB/MB(X56N/M), L415NB/MB(X60N/M), L450MB(X65), L485MB(X70) and L555MB(X80).
Common standards include SY/T5037-2008 (ministry-level standard, also called submerged-arc welded steel pipe for common fluid service pipeline), GB/T9711.1-2008 (national standard, also called oil and gas industry delivery pipe), SY/T5040-2008 (spiral seam welded steel pipe for piles), API-5L (American Petroleum Institute, also called pipeline steel pipe; two classes of pipes: class PSL1 and class PSL2), etc.
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Cangzhou Hengjia Pipeline Co., Ltd.
Cangzhou Hengjia Pipeline Co., Ltd. located in “Chinese Pipeline Equipment Manufacturing Base”-Yanshan County of Hebei Province is a sales company of Hebei Longrun Pipeline Group Co., Ltd.
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