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  • Cangzhou Steel Pipe Group (CSPG) Co., Ltd.
  • ADD:No.92 Jiefang East Rd., Cangzhou City, Hebei Province, China
  • TEL:+86-31-75673271
  • MOBILE:+8615373302068
  • E-MAIL:ella@cnspipe.com
  • Spiral Submerged-arc Welding Pipe

    28 inch carbon steel pipe irrigation used, double-side spiral submerged-arc welded steel pipe Spiral welded pipe production by submerged arc method is based on using tandem welding technique for joining inside and outside coil edges, which have been trimmed and beveled by carbide milling for...
    Product Details:

    28 inch carbon steel pipe irrigation  used, double-side spiral submerged-arc welded steel pipe

    Product name

    Rachel high pressure steel tube offering price list SAW spiral welded steel pipe

    Size Thickness: Length 6-30m

    Standard

    ASTM A500, BS1387,GB3091,ASTMA53, B36.10, BS EN1029, GB/T9711 etc

    Material

    API 5L, ASTM A53 GrA,GrB; STKM11,ST37,ST52, 16Mn,etc.

    Fabrication

    Plain ends, cutting, etc

    Surface Treatment

    1. PVC,black and color painting

    2. Transparent oil,anti-rust oil

    3. According to clients requirement

    Package

    Bundle; Bulk; Plastic bags ,etc

    Others

    We can do special orders as customer's requirement.

    We also can provide all kinds of steel hollow pipes.

    All the production process are made under the ISO9001:2008 strictly


    Elements Material

    Chemical Composition%

    Mechanical Property


    C%

    Mn%

    S%

    P%

    Si%

    Yield Point (Mpa)

    Tensile Strength(Mpa)

    Elongation  
    (%) 

    Q195

    0.06-0.12

    0.25-0.50

    <0.050

    <0.045

    <0.30

    >195

    315-430

    32-33

    Q215

    0.09-0.15

    0.25-0.55

    <0.05

    <0.045

    <0.30

    >215

    335-450

    26-31

    Q235

    0.12-0.20

    0.30-0.70

    <0.045

    <0.045

    <0.30

    >235

    375-500

    24-26

    Q345

    <0.20

    1.0-1.6

    <0.040

    <0.040

    <0.55

    >345

    470-630

    21-22


    Spiral welded pipe production by submerged  arc method is based on using tandem welding technique for joining inside and outside coil edges, which have been trimmed and beveled by carbide milling for high quality weld structure.

    Welding of hot rolled steel coils takes spiral form after passing through preforming and forming rolls. Excellent  exterior weld quality at high production speeds is provided by double submerged arc welding process. Manufactured pipes are cut to the desired lengths at the exit of the pipe machine. Pipe ends are beveled by means of carbide machining for accurate on-site welding.

    After the pipe is conveyed to hydrostatic testing and off-line ultrasonic testing and/or real time X-ray inspection, the pipe will be subject to final inspection for the compliance to customer requirements.

    Starting from incoming control up to the final inspection stage; entire process is monitored and supported by computerized system. Traceability is achieved by input controls and barcodes  through entire production lines.


    Application Areas

    Spiral welded steel pipes are widely used  in Oil, Natural Gas, Water and other flammable & nonflammable liquid  conveyance and distribution pipelines, steel structures for construction and  other general purposes by means of their wide size range.

    Widely preferred longer lengths up to 18,5  m. considerably decreases the cost of pipeline construction resulting in less  number of girth welds compared to shorter pipe lengths.


    Pipe length

    Umran is able to manufacture and supply  spiral welded pipes up to 18,5 m. in unit length.


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