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Cangzhou Spiral Steel Pipes Group Co.,Ltd.

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    l290 Spiral steel pipe
    Release date：2016-11-07

    l290Spiral steel pipe l360Spiral steel pipe

    l290Spiral steel pipe                                                                                l360 spiral steel pipe

    L290 spiral steel pipe, L360 spiral pipe specifications price list

    GB spiral pipe name GB spiral steel pipe size (diameter * wall thickness) GB spiral pipe name GB spiral 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
    L290 (X42) spiral steel yield strength 290MPa
    L290 mechanical properties of spiral steel pipe
    Mechanical properties
    chemical composition
     
    Yield Strength
    tensile strength
    Elongation
    C
    Si
    Mn
    S
    P
     
    MPa
    kg/mm²
    MPa
    kg/mm²
    min
    不大于
    no greater than
    no greater than
     
    Q215AQ215B
    215
    22
    335-410
    34-42
    31
    0.09-0.15
    0.03
    0.25-0.55
    0.0500.045
    0.045
    Q235AQ235B

    Q235C

    Q235D

    Spiral steel pipe
    235
    24
    375-460
    38-47
    26
    0.14-0.220.12-0.20

    ≤0.18

    ≤0.17
    0.30
    0.30-0.650.30-0.70

    0.35-0.80

    0.35-0.80
    0.500.45

    0.40

    0.035
    0.0450.045

    0.040

    0.035
    16Mn(Q345B)
    345
    35
    510-600
    51.60
    22
    0.12-0.20
    0.20-0.55
    1.2-1.6
    0.045
    0.045
    X42
    289
    29.5
    413
    42.1
    　
    0.28
    -
    1.25
    0.030
    0.030
    X52
    358
    36.5
    455
    46.4
    0.30
    -
    1.35
    0.030
    0.030
    X56
    386
    39.4
    489
    49.9
    0.26
    -
    1.35
    0.030
    0.030
    X60
    413
    42.1
    517
    52.7
    0.26
    -
    1.35
    0.030
    0.030
    X65
    448
    45.7
    530
    54.0
    0.26
    -
    1.40
    0.030
    0.030
    X70
    482
    49.2
    565
    57.6
    0.26
    -
    1.40
    0.030
    0.030
    L245
    245
    　
    415
    　
    21
    0.26
    　
    1.15
    0.030
    0.030
    L290
    290
    　
    415
    　
    21
    0.28
    　
    1.25
    0.030
    0.030
    L360
    360
    　
    460
    　
    19
    0.3
    　
    1.25
    0.030
    0.030

     

    L290 spiral steel pipe, L360 spiral steel pipe 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

    l290Spiral steel pipe、L360Spiral steel pipe工艺流程

    L290 spiral steel pipe, L360 spiral steel pipe use
    L290 spiral steel pipe is an important structural parts of machine tools, such as connecting rods, bolts, gears and shafts. Hardness after tempering is generally HB200-330.
    Double - sided submer
    Cement mortar anti -
    API Spiral steel pipe
    L360 spiral steel pip
    Prefabricated polyure
    l290 Spiral steel pip
    q345b Spiral steel pi
    Three cloth four oil