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Cangzhou Spiral Steel Pipes Group Co.,Ltd.

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    q235b Spiral steel pipe
    Release date：2016-11-07

    q235bSpiral steel pipe  q235b大口径Spiral steel pipe

    q235b Spiral steel pipe                                                      q235b Large diameter spiral steel pipe

    q235bSpiral steel pipe specifications price list

    q235bSpiral steel pipe name q235bSpiral steel pipe size (diameter * wall thickness) q235bSpiral steel pipe name q235bSpiral steel pipe size (diameter * wall thickness)
    219Spiral steel pipe 219*6 219*7 219*8 273Spiral steel pipe 273*6 273*7 273*8
    325Spiral steel pipe 325*6 325*7 325*8 325*9 325*10 426Spiral steel pipe 426*6 426*7 426*8 426*9 426*10 426*11 426*12
    630Spiral steel pipe 630*6 630*7 630*8 630*9 630*10 630*12 630*14 630*16 720Spiral steel pipe 720*6 720*7 720*8 720*9 720*10 720*12 720*14 720*16
    820Spiral steel pipe 820*6 820*7 820*8 820*9 820*10 820*12 820*14 820*16 920Spiral steel pipe 920*6 920*7 920*8 920*9 920*10 920*12 920*14 920*16
    1020Spiral steel pipe 1020*10 1020*12 1020*14 1020*16 1020*18 1020*20 1120Spiral steel pipe 1120*10 1120*12 1120*14 1120*16 1120*18 1120*20
    1220Spiral steel pipe 1220*10 1220*12 1220*14 1220*16 1220*18 1220*20 1420Spiral steel pipe 1420*10 1420*12 1420*14 1420*16 1420*18 1420*20
    1620Spiral steel pipe 1620*10 1620*12 1620*14 1620*16 1620*18 1620*20 1820Spiral steel pipe 1820*10 1820*12 1820*14 1820*16 1820*18 1820*20
    2020Spiral steel pipe 2020*10 2020*12 2020*14 2020*16 2020*18 2020*20 2220Spiral steel pipe 2220*10 2220*12 2220*14 2220*16 2220*18 2220*20
    2420Spiral steel pipe 2420*10 2420*12 2420*14 2420*16 2420*18 2420*20 2620Spiral steel pipe 2620*10 2620*12 2620*14 2620*16 2620*18 2620*20
    2820Spiral steel pipe 2820*10 2820*12 2820*14 2820*16 2820*18 2820*20 3020Spiral steel pipe 3020*10 3020*12 3020*14 3020*16 3020*18 3020*20
    The latest price reference: spiral pipe price list
    Q235b spiral steel pipe standards and uses
    SY / T5037-2000 Department superscript, also known as ordinary fluid pipeline with spiral submerged arc welded pipe
    GB / T9711.1-1997 (GB, also known as the oil and gas industry delivery steel pipe delivery technical conditions Part I: A grade steel pipe (to the demanding GB / T9711.2 B grade steel pipe)), API-5L (American Petroleum Institute , Also known as pipeline steel pipe; which is divided into PSL1 and PSL2 two levels), SY / T5040-92 (pile with spiral submerged arc welded pipe)
    Spiral steel pipe production process
    Inspection of raw materials - Uncoiling - First flat - Cut to butt welding - Finishing - Milling - Delivery - Molding inside and outside welding - Welding slag clearance External inspection - Automatic repair welding, X-ray inspection, filming and Manual ultrasonic re-inspection - pipe end groove machining - hydrostatic pressure test - automatic length measurement weighing - spray signs - the final inspection - storage

    q235bSpiral steel pipe工艺流程图

    Q235b advantages of spiral steel pipe
    Spiral welded pipe strength is generally higher than the straight seam welded pipe can be used to produce a larger blank diameter pipe larger pipe can also use the same width of the diameter of the pipe production of different pipe. However, compared with the same length of the straight seam pipe, weld length increased by 30 to 100%, and the production rate is low. Therefore, most of the smaller diameter welded pipe straight seam welding, large diameter spiral welded pipe are mostly used.
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