The Dagang sewage spiral pipe the Dagang coil Dagang sewage pipe sewage special steel pipe www.thgangguan.com www.naimoguanjian.com 
 www.bengguan168.com 
 9. Pressure fluid transport with high-frequency spiral welded pipe specifications (SY5038-83) is the volume of hot rolled strip tube, often warm spiral shape, frequency lap welding welding, for the pressure fluid transportation spiral high-frequency welded steel pipe. Bearing capacity of steel pipe, plastic welding and machining molding; a variety of strict and scientific inspection and testing, the use of safe and reliable, large diameter steel pipe, transmission efficiency, and save the laying of the pipeline investment. Mainly used for laying the pipeline transport oil and natural gas. 

 ?? Please fill out the form below to corporate message (* required), if you are already a member of the HC, 
 Sign In 
 Leave a message after message. 

 Point 
 The large diameter spiral pipe pressure fluid transport Spiral Welded Steel Pipe (SY5036-83) is mainly used for transporting oil, natural gas pipelines; pressure fluid transmission high frequency welded steel pipes with spiral seam (SY5038-83), using high-frequency welding, lap welding method used for pressure fluid transmission spiral seam of high-frequency welded steel pipe. Bearing capacity of steel pipe, plastic, for easy welding and processing; generally low pressure fluid Spiral Welded Steel Pipe (SY5037-83), using double-sided automatic submerged arc welding or single-sided welding into the legal system for water, gas, air and steam, low pressure fluid SAW pipe. ???? Spiral of commonly used standard is generally divided into: SY/T5037-2000 (Ministry of standard, also known as general fluid pipelines with spiral submerged arc welded pipe), GB/T9711.1-1997 (GB, also known as Petroleum and natural gas industries - Steel pipe for pipelines - Technical delivery conditions - the first part: 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 two levels of PSL2) SY/T5040-92 (pile of spiral submerged arc welded steel pipe)?????? spiral Material: Q235A, Q23b, 0Cr13 1Cr17, 00Cr19Ni11, 1Cr18Ni9, 0Cr18Ni11Nb. of Q345 L245 L290 X42 X46 of X70 X80 X95 features: welded pipe production process, high production efficiency, low cost, rapid development. ???? The strength of the spiral welded pipe is generally Longitudinal high, can narrow the billet production of large diameter pipe, you can also use the same width of the billet production of pipe of different diameters. However, compared with the same length of straight seam pipe, the weld length increased by 30 to 100%, and lower production rate. Therefore, smaller diameter pipe mostly straight seam welded pipe of large diameter are mostly spiral welded. Large diameter spiral pipe - Xing Song, Hebei Yanshan Steel Pipe Co., Ltd. specializing in the production of diameter 159mm-2420mm wall thickness 4mm-25mm steel grade spiral steel pipe, the product features can be customized to produce a variety of large diameter spiral steel pipe, special Spiral Pipe caliber, thin-walled spiral steel pipe, thick-walled spiral steel pipe, special materials, spiral steel pipe, the length of spiral steel pipe. And on behalf of client processing pipe coating, pipe insulation, galvanized steel pipes and other services. Products passed ISO9001-2000 Quality System Certification Click here to inquiry