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  • API 5L X42(L290) Line Pipe
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  • API 5L X42(L290) Line Pipe
     
     
    Standard:API SPEC 5L
     
    API SPEC 5L specifies requirements for the manufacture of two product specification levels (PSL 1 and PSL 2) of seamless and welded steel pipe for use in pipeline transportation systems in the petroleum and natural gas industries.  API 5L  PSL 1 X42(L290) Line Pipe API 5L  PSL 2 X42(L290)Line  Pipe
     



    API 5L X42(L290) Line Pipe Quick Details
    Standard: API SPEC 5L
    Outside Diameter: 25mm-219.3mm
    Wall thickness: 3.4mm-40mm
    Length: 6000Mm, 12000m or specified length as required.
    Type of End-Finish: Plain End, Beveled End, Treaded
    Surface treatment: Tubes will be varnished (Outside only) to prevent rust.
     
    Additional Info
    Payment Terms:T/ T, LC
    Port of Shipment: Tianjin, China
    Package:According To Per Customers' Require
    Marking: Standard + Steel Grade + Size + Heat No + Lot No
    Delivery time: Tubes will be completed within 30 days, and urgent delivery time can be discussed.


     
    Manufacturing
    Process of Manufacture
    API 5L X42(L290) Line Pipe shall be manufactured in accordance with the applicable requirements and limitations given in Tables 1 and 2.
     

    Table 2—Acceptable Manufacturing Routes for API 5L  PSL 1 X42(L290) Pipe
     
    Type of Pipe or Pipe End PSL 1 Pipe Grade PSL 2 Pipe Grade
    L290 or X42 L290 or X42
    Type of Pipe  
    SMLS X X
    CW
    LFW X
    HFW X X
    LW X
    SAWL X X
    SAWH X X
    COWL X X
    COWH X X
    Type of Pipe End  
    Belled end X
    Plain end X X
    Plain end for special coupling
    Threaded end
    1.Intermediate grades are available if agreed, but limited to grades higher than Grade L290 or X42.
    2.Double-seam pipe is available if agreed, but limited to pipe with D≥914mm (36.000 in.).
    3.Helical seam pipe is limited to pipe with D≥114.3 mm (4.500 in.).
    4.Belled-end pipe is limited to pipe with D ≤ 219.1 mm (8.625 in.) and t ≤3.6 mm (0.141 in.).
    5.Threaded-end pipe is limited to SMLS and longitudinal seam welded pipe with D ≤508 mm (20.000 in.).
     
     
     
    Table 2—Acceptable Manufacturing Routes for 
    API 5L  PSL 2 X42(L290) Pipe
     
    Type of Pipe Starting Material Pipe Forming Pipe Heat
    Treatment
    Delivery
    Condition
    SMLS Ingot, bloom, or billet As-rolled R
    Normalizing forming N
    Hot forming Normalizing N
    Quenching and
    tempering
    Q
    Hot forming and cold
    finishing
    Normalizing N
    Quenching and
    tempering
    Q
    HFW Normalizing-rolled coil Cold forming Heat treating of
    weld area only
    N
    Thermomechanical-rolled coil Cold forming Heat treating Of weld area only M
    Heat treating
    a of weld area and stress relieving of entire pipe
    M
    As-rolled or thermomechanical-rolled coil Cold forming Normalizing N
    Quenching and
    tempering
    Q
    Cold forming followed by hot reducing under controlled temperature resulting in a normalized condition N
    Cold forming followed by
    thermomechanical forming of pipe
    M
    SAW or COW pipe Normalized or normalizing-
    rolled coil or plate
    Cold forming N
    As-rolled,
    thermomechanical-rolled,
    normalizing-rolled, or
    normalized
    Cold forming Normalizing N
    Thermomechanical-rolled
    coil or plate
    Cold forming M
    Quenched and tempered
    plate
    Cold forming Q
    As-rolled,
    thermomechanical-rolled,
    normalizing-rolled, or
    normalized coil or plate
    Cold forming Quenching and
    tempering
    Q
    As-rolled,
    thermomechanical-rolled,
    normalizing-rolled, or
    normalized coil or plate
    Normalizing forming N
    R:As-rolled
    N:Normalizing rolled, normalizing formed, normalized, or normalized and tempered
    Q:Quenched and tempered
    M:Thermomechanical rolled or thermomechanical formed
     
    Note:Treatment of Weld Seams in EW and LW Pipe
    PSL 1 EW Pipe
    For Grade L290 or X42, the weld seam shall be heat treated so as to simulate a normalizing heat treatment, or the pipe shall be processed in such a manner that no untempered martensite remains.
    LW Pipe and PSL 2 HFW Pipe
    For API 5L X42(L290) not subjected to quench and temper processing, the weld seam and the entire HAZ shall be heat treated so as to simulate a normalizing heat treatment.
     
     
     
    Chemical Composition
     
    Table 3—Chemical Composition for API 5L  PSL 1 X42(L290) Pipe with t ≤25.0 mm (0.984 in.)


    Grade Chemical Composition,%
    C Mn P S V Nb Ti
    max max min max max max max max
    Seamless Pipe
    L290 or X42 0.28 1.30 0.030 0.030 - - -
    Welded Pipe
    L290 or X42 0.26 1.30 0.030 0.030 - - -
     
    Note:Cu≤0.50 %; Ni≤0.50 %; Cr≤0.50 % and Mo≤0.15 %.
    Nb + V + Ti ≤0.15 %.
     
     
    Table 4—Chemical Composition for API 5L PSL 2 X42(L290) Pipe with t ≤25.0 mm (0.984 in.)
     

    Grade Chemical Composition Carbon
    Equivalent
    % max
    C Si Mn P S V Nb Ti Other CE IIW CE Pcm
    Seamless and Welded Pipe
    L290R or X42R 0.24 0.40 1.20 0.025 0.015 0.06 0.05 0.04 - 0.43 0.25
    L290N or X42N 0.24 0.40 1.20 0.025 0.015 0.06 0.05 0.04 - 0.43 0.25
    L290Q or X42Q 0.18 0.45 1.40 0.025 0.015 0.05 0.05 0.04 - 0.43 0.25
    Welded Pipe
    L290M or X42M 0.22 0.45 1.30 0.025 0.015 0.05 0.05 0.04   0.43 0.25
     
    Note:Unless otherwise agreed, Cu * 0.50 %; Ni * 0.30 %; Cr * 0.30 % and Mo * 0.15 %.
     
     

    Mechanical properties
    Tensile Properties
     For  API 5L PSL 1 X42(L290) pipe, the tensile properties shall be as given in Table 5.
     

    Grade Pipe Body of Seamless and Welded Pipe Weld Seam of EW,
    LW, SAW, and COW
    Pipe
    Yield Strength
    R t0.5  
    MPa (psi)
    Tensile Strength
    R m
    MPa (psi)
    Elongation
    (on 50 mm or 2 in.) A f  %
    Tensile Strength
    R m
    MPa (psi)
    min min min min
    L290 or X42 290 (42,100) 415 (60,200) C 415 (60,200)
     
     
     
     For  API 5L PSL 2 X42(L290) pipe, the tensile properties shall be as given in Table 6.
     

    Grade Pipe Body of Seamless and Welded Pipe Weld Seam
    of HFW,
    SAW and
    COW Pipe
    Yield Strength
    R t0.5
    MPa (psi)
    Tensile Strength
    R m
    MPa (psi)
    Ratio
    R t0.5 /R m
    Elongation
    (on 50 mm
    or 2 in.)
    A f   %
    Tensile
    Strength
    R m
    MPa (psi)
    min max min max max min min
    L290R or X42R
    L290N or X42N
    L290Q or X42Q
    L290M or X42M
    290
    (42,100)
    495
    (71,800)
    415
    (60,200)
    655
    (95,000)
    0.93 F 415
    (60,200)
     
    Note:
    A f :The specified minimum elongation, A f , expressed in percent and rounded to the nearest percent, shall be as determined using the
    following equation:
     
     
     
    where
    C is 1940 for calculations using SI units and 625,000 for calculations using USC units;
    A xc is the applicable tensile test piece cross-sectional area,
    U is the specified minimum tensile strength, expressed in megapascals (pounds per square inch).
     
     
     
    Testings
    Tensile Test
    Hydrostatic Test
    Full Section Bend Test
    Flattening Test
    Guided-bend Test
    Hardness Test
    Pipe Weld and HAZ Tests
    Macrographic and Metallographic Tests
    DWT Test for API 5L PSL 1 X42(L290) Welded Pipe
    CVN Impact Test for API 5L  PSL 2 X42(L290)  Pipe

    Table 6  CVN Absorbed Energy Requirements for Pipe Body of PSL 2 Pipe

    Specified Outside
    Diameter
    D
    mm (in.)
    Full-size CVN Absorbed Energy
    min
    K V
    J (ft·lbf)
    Grade
    L290 or X42
    ≤ 508 (20.000) 27 (20)
    >508 (20.000) to 762 (30.000) 27 (20)
    >762 (30.000) to 914 (36.000) 40 (30)
    >914 (36.000) to 1219 (48.000) 40 (30)
    >1219 (48.000) to 1422 (56.000) 40 (30)
    >1422 (56.000) to 2134 (84.000) 40 (30)
     
     
     
     
    Dimensions  Tolerances
    (1) The pipe shall be delivered in random lengths or approximate length,.
    (2)The specified outside diameter and specified wall thickness shall be within the applicable limits given in Table 7.

    Table 7 Permissible Specified Outside Diameter and Specified Wall Thickness

    Specified Outside Diameter
    D
    mm (in.)
    Specified Wall Thickness
    t
    mm (in.)
    Special Light Sizes  a Regular Sizes
    ≥10.3 (0.405) to <13.7 (0.540) ≥1.7 (0.068) to ≤ 2.4 (0.094)
    ≥13.7 (0.540) to < 17.1 (0.675) ≥2.2 (0.088) to ≤ 3.0 (0.118)
    ≥17.1 (0.675) to <21.3 (0.840) ≥2.3 (0.091) to ≤ 3.2 (0.125)
    ≥21.3 (0.840) to < 26.7 (1.050) ≥2.1 (0.083) to ≤ 7.5 (0.294)
    ≥26.7 (1.050) to <33.4 (1.315) ≥ 2.1 (0.083) to ≤7.8 (0.308)
    ≥33.4 (1.315) to <48.3 (1.900) ≥2.1 (0.083) to ≤ 10.0 (0.394)
    ≥48.3 (1.900) to<60.3 (2.375) ≥2.1 (0.083) to ≤ 12.5 (0.492)
    ≥ 60.3 (2.375) to<73.0 (2.875) ≥ 2.1 (0.083) to ≤ 3.6 (0.141) ≥3.6 (0.141) to ≤ 14.2 (0.559)
    ≥73.0 (2.875) to<88.9 (3.500) ≥ 2.1 (0.083) to ≤ 3.6 (0.141) ≥3.6 (0.141) to ≤ 20.0 (0.787)
    ≥ 88.9 (3.500) to<101.6 (4.000) ≥2.1 (0.083) to ≤ 4.0 (0.156) ≥ 4.0 (0.156) to ≤ 22.0 (0.866)
    ≥101.6 (4.000) to ? 168.3 (6.625) ≥2.1 (0.083) to ≤ 4.0 (0.156) ≥ 4.0 (0.156) to≤ 25.0 (0.984)
    ’? 168.3 (6.625) to<219.1 (8.625) ≥2.1 (0.083) to ≤ 4.0 (0.156) ≥4.0 (0.156) to ≤40.0 (1.575)
    ≥219.1 (8.625) to<273.1 (10.750) ≥ 3.2 (0.125) to ≤ 4.0 (0.156) ≥4.0 (0.156) to≤ 40.0 (1.575)
    ≥273.1 (10.750) to<323.9 (12.750) ≥3.6 (0.141) to ≤5.2 (0.203) ≥5.2 (0.203) to ≤45.0 (1.771)
    ≥323.9 (12.750) to<355.6 (14.000) ≥ 4.0 (0.156) to ≤ 5.6 (0.219) ≥5.6 (0.219) to≤ 45.0 (1.771)
    ≥355.6 (14.000) to<457 (18.000) ≥ 4.5 (0.177) to ≤ 7.1 (0.281) ≥7.1 (0.281) to≤ 45.0 (1.771)
    ≥457 (18.000) to<559 (22.000) ≥ 4.8 (0.188) to ≤7.1 (0.281) ≥7.1 (0.281) to≤ 45.0 (1.771)
    ≥559 (22.000) to<711 (28.000) ≥ 5.6 (0.219) to ≤ 7.1 (0.281) ≥7.1 (0.281) to≤45.0 (1.771)
    ≥711 (28.000) to<864 (34.000) ≥ 5.6 (0.219) to ≤ 7.1 (0.281) ≥7.1 (0.281) to≤ 52.0 (2.050)
    ≥864 (34.000) to<965 (38.000) ≥5.6 (0.219) to≤ 52.0 (2.050)
    ≥965 (38.000) to<1422 (56.000) ≥6.4 (0.250) to ≤ 52.0 (2.050)
    ≥1422 (56.000) to<1829 (72.000) ≥9.5 (0.375) to ≤ 52.0 (2.050)
    ≥1829 (72.000) to<2134 (84.000) ≥10.3 (0.406) to ≤ 52.0 (2.050)
    NOTE Standardized values for specified outside diameter and specified wall thickness of pipe are given in ISO 4200 [7] and ASME B36.10M[8]
    a: Pipe having the combination of specified outside diameter and specified wall thickness is defined as special light size pipe;
    other combinations given in this table are defined as regular size pipe.
     
     
     
    Surface Conditions, Imperfections, and Defects
    All pipe shall be free from defects in the finished condition.
    All pipe shall be free from cracks, sweats, and leaks.


     
    Finish of Pipe Ends
    General
    API 5L PSL 1 X42(L290) pipe shall be furnished with plain ends, unless another acceptable end finish is specified in the purchase order.
    API 5L PSL 2 X42(L290) pipe shall be furnished with plain ends.
    Pipe ends shall be free from burrs.
     
    Threaded Ends (PSL 1 Only)
    Belled Ends (PSL 1 Only)
    Ends Prepared for Special Couplings (PSL 1 Only)
    Plain Ends
     
     
     
    Coatings and Thread Protectors
    Coatings and Linings
    If agreed, pipe will be delivered with a temporary external coating to provide protection from rusting in storage and transit.
    If agreed, pipe will be delivered with a lining.
     
    Thread Protectors
    For threaded pipe with D < 60.3 mm (2.375 in.), the thread protectors shall be suitable fabric wrappings or shall be suitable metal, fiber, or plastic protectors.
    For threaded pipe with D ≥ 60.3 mm (2.375 in.), the thread protectors shall be of such design,material, and mechanical strength as to protect the thread and pipe end
     

     
     
    General Information
    The purchase order shall include the following information:
    a) quantity (e.g. total mass or total length of pipe);
    b) PSL (1 or 2);
    c) type of pipe ;
    d) reference to API 5L;
    e) steel grade ;
    f) outside diameter and wall thickness ;
    g) length and type of length (random or approximate) ;
    h) confirmation of applicability of individual annexes.
     
     
     



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