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EFW ERW Single Double Seam Welded Pipe

    Buy cheap EFW ERW Single Double Seam Welded Pipe from wholesalers
     
    Buy cheap EFW ERW Single Double Seam Welded Pipe from wholesalers
    • Buy cheap EFW ERW Single Double Seam Welded Pipe from wholesalers
    • Buy cheap EFW ERW Single Double Seam Welded Pipe from wholesalers
    • Buy cheap EFW ERW Single Double Seam Welded Pipe from wholesalers

    EFW ERW Single Double Seam Welded Pipe

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    Brand Name : Torich
    Model Number : JIS G3468
    Certification : ISO9001; ISO14001; TSI16949
    Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram
    Supply Ability : 60000 Ton per year
    Delivery Time : 30-45days
    • Product Details
    • Company Profile

    EFW ERW Single Double Seam Welded Pipe

    EFW ERW Single Double Seam Welded Pipe


    Quick detail:

    Single Seam: Outside Diameter 6-914mm Wall thickness 0.5-60mm

    Double Seams:Outside Diameter 630-1524mm Wall thickness 2-80mm

    Circular Seam:Outside Diameter 630 mm above Wall thickness 2-100


    Material

    SUS 304,TP304 SUS304L TP304L SUS316 TP316 SUS316 TP316L.


    Calculation Formula

    0.02491

    0.02482

    0.02513


    Application : Electric Power

    Oil Refining

    Nuclear Power

    Drinking Water

    Offshore Engineering &Shipbuilding

    Natural Gas

    Paper making

    Construction


    Description:


    LARGE DIAMETER PIPE Available material


    Material
    Austenitic Stainless Steel310S, 309S,316L,321,304L,304
    DuplexS,32750,S32760,S31803,S32205
    Nickel-Base AlloyN08904,N06600,N08825
    Copper Nickel AlloyC70600,C70620
    Ferrite430,409L
    Other Special Material254SMO,253MA
    High-Temp Material310S,309S,S30815
    Titanium AlloysTA2,TA10,TC4

    Production process:

    Steel Coil

    Re-test

    Flat Open and Transverse Shear

    Shear Longitudinal Shear

    Edge Planning and Milling

    Butt Welding of plate

    Forming(Bending/Reeling)

    End Squaring&Tack Welding

    Welding Seam Cleaning

    Automatic welding

    Radiographic Test

    Solution Treatment

    Rounding

    Straightening

    End Facing Treatment

    Hydrostatic Test

    Pickling Passivation

    Rinse and Dry

    Radiographic Test

    Finished Production Testing

    Marking

    Packing

    Finished Product Warehousing

    Shipping


    Standard:

    GB/T 12771


    Delivery condition:

    Heat treatment

    Welded

    StandardItemOutside DiameterThickness

    Roundness


    StraightnessLength
    GB/T 12771Heat treatmentHigh ClassGeneral
    <50±0.20±0.3

    >0.5-1.0,±0.15

    >1.0-2.0

    ±0.20

    >2.0-4.0

    ±0.3

    ±10%

    Not exceed the OD tolerance

    t/D≤3% ≤1.5%D

    OD ≤ 108 mm,≤1.5mm/m

    > 108-325mm

    ≤2.0mm/m

    > 325mm

    ≤2.5mm/m


    3000-9000mm,

    Length tolerance is 0,+20mm


    ≥40-<65±0.30±0.40
    ≥65-<90±0.40±0.50
    ≥90-<168.3±0.80±1.0
    >168.3-<325±0.75% D±1% D
    ≥325-<610±0.6% D±1% D
    >610±0.6% D±0.7% or± 10 Chose min value
    WeldedAll sizes±0.5% D or ±0.20 chose the bigger one±0.75% D or ±0.30 chose the bigger one

    Product Pictures



    Company Introduction

    QUALITY CONTROL


    1. Incoming Raw Material Inspection

    2. Raw Material Segregation to avoid steel grade mix-up
    3. Heating and Hammering End for Cold Drawing
    4. Cold Drawing and Cold Rolling, on line inspection
    5. Heat Treatment, +A, +SRA, +LC, +N, Q+T
    6. Straightening-Cutting to specified length-Finished Measuring Inspection
    7. Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
    8. Packing and Stocking


    100% of our steel tubes are dimensionally checked
    100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
    100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects










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