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  3. Spiral Steel Pipe
  4. ASTM A252 GR.2/GR.3 spiral steel pipe
  • ASTM A252 GR.2/GR.3 spiral steel pipe
  • ASTM A252 GR.2/GR.3 spiral steel pipe
ASTM A252 GR.2/GR.3 spiral steel pipeASTM A252 GR.2/GR.3 spiral steel pipe

ASTM A252 GR.2/GR.3 spiral steel pipe

  • Product Item:ASTM A252 GR.2/GR.3 spiral steel pipe
  • Pipe type:Spiral seam welded steel pipe, Double-sided submerged arc welding steel pipe(DSAW steel pipe), helical submerged arc welded steel pipe,SSAW Pipe, SSAW Steel Pipe, Spiral Steel Pipe, Welded S
  • Size : OD:219-3500mm WT:1.65-40mm, Length: 6mtr-20mtr
  • Standard & Grade :ASTM A252 Grades 1,2,3
  • Ends:Square Ends/Plain Ends (straight cut, saw cut, torch cut), Beveled/Threaded Ends
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    Description
    Specification
    The process of Ssaw steel pipe:
    Steel coils→Ray material test → Delivery straightening → Plate cutting and welding  → circle shear edge milling  → Forming  → inside auto-welding  → Outside auto-welding  → Online ultrasonic inspection  → Fixed length cutting  → Visual inspection for outside seam  → Visusl inspection for inside seam  → X-ray inspection for welding seam  → Even end and end bevel  → Hydrostatic test  → Ultrasonic inspection → Final product inspection  → Marking  → Store up


    A252 Comparitive Specifications
    ASTM Specification A252 describes nominal (average) wall steel pipe piles of cylindrical shape and applies to pipe piles in which the steel cylinder acts as a permanent load-carrying member or as a shell to form case-in-place concrete piles.
    Surface imperfections exceeding 25% of the nominal wall in depth are considered defects. Defects not exceeding 22.5% of the nominal wall in depth may be repaired by welding. Before welding, the defect shall be completely removed.

    MECHANICAL PROPERTIES – TENSILE REQUIREMENTS

    Grade 1

    Grade 2

    Grade 3

    Tensile Strength, min, psi

    50,000

    60,000

    66,000

    Yield Strength

    30,000

    35,000

    45,000

    CHEMICAL REQUIREMENTS FOR A252

    Phosphorus

    Seamless and Welded

    Max% 0.050


    • Testing Requirements for seamless and welded A252 steel piling pipe
    o Hydrostatic Testing: Not specified.
    o Mechanical Tests:
     Tensile Test: Either longitudinal or transverse at option of manufacturer.
    o Number of Tests: One tensile test per 200 lengths.
    • Permissible Variations for A252 steel piling pipe
    o Wall thickness: Not more than 12.5% under the nominal wall thickness specified.
    o Weights per foot: The weight of any individual length of pipe shall not vary more than 15% over or 5% under the weight specified. Each individual length shall be weighed separately.
    o Outside diameter: Shall not vary more than plus or minus 1% from the diameter specified.
    • Lengths of A252 steel piling pipe
    Steel Tubular Products A252 steel piling pipe may be ordered in single or double random lengths or in uniform lengths.
    •
    o Single random – 16’ – 25’ inclusive
    o Double random – Over 25’ with a minimum average of 35’
    o Uniform – Plus or minus 1” on length specified
    • Marking Requirements
    Rolled, die-stamped, or paint-stenciled (manufacturer’s option).
    •
    o Manufacturer’s name, brand, or trademark
    o Heat number
    o Method of pipe manufacture
    o Size, weight, length
    o Wall thickness
    o ASTM A252 and steel grade

    Other Types of API 5L / ASTM A252/ EN10219-2/ ASTM A572 Spiral Steel Pipe / SSAW Steel Pipe:

    API 5L / ASTM A252/ EN10219-2/ ASTM A572 Spiral Steel Pipe

    API 5L / ASTM A252/ EN10219-2/ ASTM A572 SSAW Steel Pipe

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    DIMENSION TOLERANCES OF SSAW STEEL PIPE

    Standard

    Standard

    SY/T5040-2000

    Y/T5037-2000

    SY/T9711.1-197

    ASTM A252

    AWWA C200-9

    API 5L PSL1

    Tube end OD deviation

    ± 0.5%D

    ± 0.5%D

    -0.79mm~+2.38

    <± 0.1%T

    <± 0.1%T

    ± 1.6mm

    Wall thickness

    ± 10.0%T

    D<508mm, ±12.5%T

    - 8%T~+19.5%T

    <- 12.5%T

    -8%T~+19.5%T

    5.0mm

    D>508mm, ±10.0%T

    T≥15.0mm, ±1.5m


    SPECIFICATIONS OF SSAW STEEL PIPE


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      • ASTM A210/A210M Seamless bolier tube
      • ASTM A519 Seamless steel pipe
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      • ASTM A 519 4145 seamless steel tubes
      • ASTM A 519 4130 seamless steel tubes
      • ASTM A 519 1026 seamless steel tubes
      • ASTM A 519 1045 seamless steel tubes
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      • ASTM A 312 317L Stainless Steel tubes
      • ASTM A 312 347 Stainless Steel tubes
      • ASTM A 312 347H Stainless Steel tubes
      • ASTM A 312 321 Stainless Steel tubes
      • ASTM A 312 410 Stainless Steel tubes
      • ASTM B673, B677, B674 904L Stainless Steel tubes
      • ASTM A790 Duplex Steel S31803 tubes
      • ASTM A790 Duplex Steel S32205 tubes
    • Coating pipe
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