Products

SSAW Steel Pipe

SSAW Steel Pipe

    SSAW steel pipe (spiral submerged arc welded steel pipe) is formed by spiral bending of hot-rolled strip steel, and spiral seam steel pipe (also called spiral welded pipe, spiral pipe spiral steel pipe) is formed by automatic welding of submerged arc for inner and outer joints.

    Material of SSAW Steel Pipe

    Uses Standard
    Steel Pipe for Fluid Service GB/T 14291
    GB/T 3091
    SY/T 5037
    ASTM A53
    BS EN10217-2
    BS EN10217-5
    Steel Pipe for Ordinary Structure GB/T 13793
    SY/T 5040
    ASTM A252
    BS EN10219-1
    BS EN10219-2
    Line Pipe GB/T 9711.1
    GB/T 9711.2
    API 5L PSL1/2
    Casing API 5CT/ ISO 11960 PSL1


    Chemical Analysis and Mechanical Properties of SSAW Steel Pipe
    The raw material of the SSAW steel pipe includes steel coil, welding wire, flux. All of raw materials must be through strict physical and chemical maintenance before the investment.

    Standard Grade Chemical Composition(max)% Mechanical Properties(min)
    C Si Mn P S Tensile Strength(Mpa) Yield Strength(Mpa)
    API 5CT h40 0.03 417 417
    J55 0.03 517 517
    K55 0.3 655 655
    API 5L PSL1 A 0.22 0.9 0.03 0.03 335 335
    B 0.26 1.2 0.03 0.03 415 415
    X42 0.26 1.3 0.03 0.03 415 415
    X46 0.26 1.4 0.03 0.03 435 435
    X52 0.26 1.4 0.03 0.03 460 460
    X56 0.26 1.4 0.03 0.03 490 490
    X60 0.26 1.4 0.03 0.03 520 520
    X65 0.26 1.45 0.03 0.03 535 535
    X70 0.26 1.65 0.03 0.03 570 570
    API 5L PSL2 B 0.22 0.45 1.2 0.025 0.015 415 415
    X42 0.22 0.45 1.3 0.025 0.015 415 415
    X46 0.22 0.45 1.4 0.025 0.015 435 435
    X52 0.22 0.45 1.4 0.025 0.015 460 460
    X56 0.22 0.45 1.4 0.025 0.015 490 490
    X60 0.12 0.45 1.6 0.025 0.015 520 520
    X65 0.12 0.45 1.6 0.025 0.015 535 535
    X70 0.12 0.45 1.7 0.025 0.015 570 570
    X80 0.12 0.45 1.85 0.025 0.015 625 625
    ASTM A53 A 0.25 0.1 0.95 0.05 0.045 330 330
    B 0.3 0.1 1.2 0.05 0.045 415 415
    ASTM A252 1 0.05 345 345
    2 0.05 414 414
    3 0.05 455 455
    EN10217-1 P195TR1 0.13 0.35 0.7 0.025 0.02 320 320
    P195TR2 0.13 0.35 0.7 0.025 0.02 320 320
    P235TR1 0.16 0.35 1.2 0.025 0.02 360 360
    P235TR2 0.16 0.35 1.2 0.025 0.02 360 360
    P265TR1 0.2 0.4 1.4 0.025 0.02 410 410
    P265TR2 0.2 0.4 1.4 0.025 0.02 410 410
    EN10217-2 P195GH 0.13 0.35 0.7 0.025 0.02 320 320
    P235GH 0.16 0.35 1.2 0.025 0.02 360 360
    P265GH 0.2 0.4 1.4 0.025 0.02 410 410
    EN10217-5 P235GH 0.16 0.35 1.2 0.025 0.02 360 360
    P265GH 0.2 0.4 1.4 0.025 0.02 410 410
    EN10219-1 S235JRH 0.17 1.4 0.04 0.04 360 360
    S275JOH 0.2 1.5 0.035 0.035 410 410
    S275J2H 0.2 1.5 0.03 0.03 410 410
    S355JOH 0.22 0.55 1.6 0.035 0.035 470 470
    S355J2H 0.22 0.55 1.6 0.03 0.03 470 470
    S355K2H 0.22 0.55 1.6 0.03 0.03 470 470


    Uses of SSAW Steel Pipe
    for fluid sevice
    for low pressure fluid service 
    for pipelines for low pressure fluid service
    for pressure purposes 
    for pipe piles
    Cold formed welded structural hollow sections of non-alloy and fine grain steels
    for pipeline transportation system of petroleum and natural gas industries(Class A steel pipe)
    for use as casing or tubing for wells of petroleum and natural gas industries



    SSAW Pipe (HSAW Pipe) Manufacturing Process
    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.



    Spiral Seam Annealing Systems
    Thermatool designs and manufactures Spiral Seam Annealing systems for producers of SAW (submerged arc welded) API line pipe.
    Offering all the basic features and benefits of Thermatool seam annealing systems designed for operation on longitudinally welded API pipe, Thermatool Spiral Seam Annealing systems, however, require the installation of specially “shaped” inductors.
    These are custom designed on CAD systems in order to precisely follow the helix angle for a specific pipe diameter.




    Production Notes of SSAW Steel Pipe
    SSAW steel pipe in the production process, we need to pay attention to a series of matters. Except for the following test items, according to the API standard and other relevant standards and the special requirements of some users, but also the need for steel, steel pipe and other tests Destructive tests, including physical and chemical properties of the raw materials into the plant sampling, visual inspection of 100% steel .
    A. Oiled marking: steel after passing were oiled to prevent corrosion, and according to user requirements for marking.
    B. Leveling Milling: The flat steel anvil machine so that the original curl, and then through the edge milling machine for two-sided steel milling, so as to meet the requirements of the plate width, plate edge parallelism and groove shape.
    C. Shear molding: the steel plate production line along the outer edge of the spiral curl into a tube.
    D. Butt cut: double-sided submerged arc welding using advanced technology to pre-welding, internal welding, outside welding. The welded steel pipe using a plasma-foot cut to specification length.

    Out diameter                                 Wall Thickness
    219mm-3620mm                                                 5mm-25.4mm

    Out Diameter

    Wall Thickness (mm)

    mm

    6

    7

    8

    9

    10

    11

    12

    13

    14

    15

    16

    17

    18

    19

    20

    21

    22

    23

    24

    25

    219.1 . . . .                                
    273 . . . . .                              

    323.9

    .

    .

    .

    .

    .

    .

    .

     

     

     

     

     

     

     

     

     

     

     

     

     

    325

    .

    .

    .

    .

    .

    .

    .

     

     

     

     

     

     

     

     

     

     

     

     

     

    355.6

    .

    .

    .

    .

    .

    .

    .

     

     

     

     

     

     

     

     

     

     

     

     

     

    377

    .

    .

    .

    .

    .

    .

    .

    .

     

     

     

     

     

     

     

     

     

     

     

     

    406.4

    .

    .

    .

    .

    .

    .

    .

     

     

     

     

     

     

     

     

     

     

     

     

     

    426

    .

    .

    .

    .

    .

    .

    .

     

     

     

     

     

     

     

     

     

     

     

     

     

    457

    .

    .

    .

    .

    .

    .

    .

     

     

     

     

     

     

     

     

     

     

     

     

     

    478

    .

    .

    .

    .

    .

    .

    .

     

     

     

     

     

     

     

     

     

     

     

     

     

    508

    .

    .

    .

    .

    .

    .

    .

     

    .

     

     

     

     

     

     

     

     

     

     

     

    529

    .

    .

    .

    .

    .

    .

    .

     

    .

     

     

     

     

     

     

     

     

     

     

     

    630

    .

    .

    .

    .

    .

    .

    .

     

    .

    .

     

     

     

     

     

     

     

     

     

     

    711

    .

    .

    .

    .

    .

    .

    .

    .

    .

    .

    .

     

     

     

     

     

     

     

     

     

    720

    .

    .

    .

    .

    .

    .

    .

    .

    .

    .

    .

     

     

     

     

     

     

     

     

     

    813

     

    .

    .

    .

    .

    .

    .

    .

    .

    .

    .

    .

    .

     

     

     

     

     

     

     

    820

     

    .

    .

    .

     

    .

    .

    .

    .

    .

    .

    .

    .

     

     

     

     

     

     

     

    920

     

     

    .

    .

     

    .

    .

    .

    .

    .

    .

    .

    .

     

     

     

     

     

     

     

    1020

     

     

    .

    .

    .

    .

    .

    .

    .

    .

    .

    .

    .

    .

    .

     

     

     

     

     

    1220

     

     

    .

    .

    .

    .

    .

    .

    .

    .

    .

    .

    .

    .

    .

     

     

     

     

     

    1420

     

     

     

    .

    .

    .

    .

    .

    .

    .

     

    .

    .

    .

    .

     

     

     

     

     

    1620

     

     

     

     

    .

    .

    .

    .

    .

    .

    .

    .

    .

    .

    .

     

     

     

     

     

    1820

     

     

     

     

     

    .

    .

    .

    .

    .

    .

    .

    .

    .

    .

     

     

     

     

     

    2020

     

     

     

     

     

     

    .

    .

    .

    .

    .

    .

    .

    .

    .

     

     

     

     

     

    2220

     

     

     

     

     

     

     

    .

    .

    .

    .

    .

    .

    .

    .

     

     

     

     

     

    2500

     

     

     

     

     

     

     

    .

    .

    .

    .

    .

    .

    .

    .

    .

    .

    .

    .

    .

    2540

     

     

     

     

     

     

     

     

    .

    .

    .

    .

    .

    .

    .

    .

    .

    .

    .

    .

    3500

     

     

     

     

     

     

     

     

     

    .

    .

    .

    .

    .

    .

    .

    .

    .

    .

    .

     

     

     

    ASTM A53 SSAW steel pipeAPI 5CT/ISO 11960 PSL1 SSAW steel pipe

Know more about this product price, catalogue, mill test certificate,  please inquiry to: sales@nan-steel.com

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