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 ? Spiral Standard Classification pressure fluid transmission spiral submerged arc welded pipe SY5036-83 is mainly used to transport oil, natural gas pipelines; pressure fluid conveying high frequency welded steel pipes with spiral seam SY5038-83, with high frequency ride Weld method for pressure fluid transmission spiral seam welding of high-frequency welded steel pipe. Bearing capacity of steel pipe, plastic, for easy welding and processing; generally low-pressure fluid transmission spiral submerged arc welded steel pipe SY5037-83, using double-sided automatic submerged arc welding or single-sided welding into the legal system for water, gas, The low pressure fluid such as air and steam SAW pipe, spiral steel pipe commonly used standards are generally divided into: SY/T5037-2000 (department standard, also known as ordinary fluid pipes with spiral seam submerged arc welded steel pipe), GB/T9711 the .1-1997 (GB, also known as the Petroleum and natural gas industries - Steel pipe for pipelines - Technical delivery conditions Part 1: Pipes of requirement class A (the current demanding GB/T9711.2 Class B steel pipe)), the API-5L (American Petroleum Institute, also known as line pipe; which is divided into PSL1 and PSL2 two levels), SY/T5040-92 (pile with spiral seam submerged arc welded steel) coil material the Q235A, Q235B.Q23b, 0Cr13, 1Cr17, 00Cr19Ni11 1Cr18Ni9, 0Cr18Ni11Nb. of Q345 L245 L290 X42 X46 of X70 X80??? 


 Hebei specializing in the production of spiral spiral steel pipe Hebei Tianhui spiral steel pipe manufacturer a lot of cash! @ [Main Sales Tel :0317 -5,128,176 13,931,753,303 15,128,720,808] Company: spiral welded pipe, spiral steel pipe, welded steel pipe manufacturer. Production: spiral welded steel pipe, spiral submerged arc welded pipe, dredge pipe, steel pipe, seamless tube, thermal expansion, spiral steel pipe, spiral welded pipe, straight seam pipe, elbow flanges, spiral welded steel pipe welding the pipe volume, T-shaped pipe, pressure pipe, water pipe, straight seam steel pipe, hot-rolled steel, billboards with steel pipes, municipal water supply pipe. The factory has five double-sided submerged arc spiral pipe production line