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  4. ASTM A572 GR50/GR.60 spiral steel pipe
  • ASTM A572 GR50/GR.60 spiral steel pipe
  • ASTM A572 GR50/GR.60 spiral steel pipe
ASTM A572 GR50/GR.60 spiral steel pipeASTM A572 GR50/GR.60 spiral steel pipe

ASTM A572 GR50/GR.60 spiral steel pipe

  • Product Item:Spiral seam welded steel pipe, Double-sided submer
  • Size : OD:219-3500mm WT:1.65-40mm, Length: 6mtr-20mtr
  • Standard & Grade ASTM A572 Grades 42, 50, 55,60,65
  • Ends:Square Ends/Plain Ends (straight cut, saw cut, torch cut), Beveled/Threaded Ends
  • Coating: 3PE Coating;3PP Coating;FBE Coating;Epoxy Coating;Special Painting
  • Inquiry Send Email
    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

    ASTM A572 standard is for high strength low alloy (HSLA) structural steel plate integrated with columbium-vanadium, the specification covers 5 grades of HSLA steel profiles, plates, sheet piling, and bars.
    Applications of A572 Steel Plates:
    Grades 42, 50, 55 are intended for riveted, bolted or welded structural, Grade 60 and 65 are for riveted and bolted construction of bridges, welded constructions and more applications.
    Referenced Documents:
    ASTM Standards:
    • A6/A6M: General requirements for rolled structural steel bars, plates, shapes, and sheet piling
    • A36/A36M:  Carbon structural steel specification
    • A514/A514M: Specification for quenched and tempered alloy steel plate with high yiled strength, suitable for welding
    • A588/A588M Specification for High-Strength Low-Alloy Structural STeel, up to 50 ksi [245 MPa] Minimum Yield Point, with Atmospheric Corrosion Resistance
    ASTM A572 Grade 50, 60 & 65 Data Sheet Properties
    Chemical properties shall conform to the requirements prescribed in Table 2 and Table 3 for alloy elements. Tensile strength and yiled strength shall comply with Table 4.
    Chemical Composition
    Table 3: Alloy elements composition

    Type A

    Elements

    Heat Analysis, %

    1

    Columbium

    0.005-0.05B

    2

    Vanadium

    0.01-0.15C

    3

    Columbium

    0.005-0.05B

    4

    Vandadium

    0.01-0.15C

    5

    Columbium plus vanadium

    0.02-0.15D

    6

    Titanium

    0.006-0.04

    7

    Nitrogen

    0.003-0.015

    8

    Vanadium

    0.06 max












    Chemical Composition
    Table 3: Alloy elements composition
    A: Alloy content shall comply with Type 1, 2, 3, or 5 and shall be on test report.
    B: Product analysis limits = 0.004 to 0.06%.
    C: Product analysis limits = 0.005 to 0.17%.
    D: Product analysis limits = 0.01 to 0.16%.
    Mechanical Properties

    Grade

    Yield Point, min

    Tensile Strenth, min

    Minimum Elongation, % B,C,D

    kis

    [MPa]

    ksi

    [MPa]

    in 8 in[200 mm]

    in 2 in[200 mm]

    42 [290]

    42

    [290]

    60

    [415]

    20

    24

    50 [345]

    50

    [345]

    65

    [450]

    18

    21

    55 [380]

    55

    [380]

    70

    [485]

    17

    20

    60 [415]

    60

    [415]

    75

    [520]

    16

    18

    65 [450]

    65

    [450]

    80

    [550]

    15

    17


    A:  Specimen shall comply with Specification of A6/A6M.
    B: Elongation not required to be determined for floor plate.
    C: For wide flange shapes over 426 lb/ft [634 kg/m], elongation in 2 in. [50 mm] of 19% minimum applies.
    D: For plates wider than 24 in. [600 mm], the elongation requirement is reduced two percentage points for Grade 42, 50, and 55 [290,345,and 380], and three percentage points for Grade 60 and 65 [415 and 450]. See elongation requirement adjustment in the Tension Tests section of Specification A6/A6M.
    General Requirements for Delivery
    Structural steel plates furnished under ASTM A572 shall comply with requirements of the current edition of Specification A6/A6M, for the specific structural product ordered, unless a conflict exists in which case this specification shall prevail.
    Coils are not applicable to this specification until they are processed to a finished structural product. Structural steel plates produced from coil means they have been cut to individual lengths from a coil. The processor directly controls, or is responsible for, the operations involved in the processing of a coil into a finished structural product. Such operations include decoiling, leveling or straightening, hot-forming or cold-forming (if applicable), cutting to length, testing, inspection, conditioning, heat treatment (if applicable), packing, marking, loading for shipment, and certification.
    Our Supply Range:
    Description: Carbon Steel ASME SA572/ ASTM A572 Grade C & D
    Manufacturing Types: Hot Rolled
    Thickness: 2 to 150 mm
    Width: 0.6m to 3m
    Length: 6m, 12m, customized
    Surface: Natural, Painted
    Packing: Standard sea packing, bundled with streel strip.

    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

    Out Diameter

    Wall Thickness (mm)

    mm

    4

    5

    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

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