ASTM A409/A409M-08a

    Standard Specification for Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service


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    1. Scope

    1.1 This specification covers straight seam or spiral seam electric-fusion-welded, light-wall, austenitic chromium-nickel alloy steel pipe for corrosive or high-temperature service. The sizes covered are NPS 14 to 30 with extra light (Schedule 5S) and light (Schedule 10S) wall thicknesses. Table shows the wall thickness of Schedule 5S and 10S pipe. Pipe having other dimensions may be furnished provided such pipe complies with all other requirements of this specification.

    1.2 Several grades of alloy steel are covered as indicated in Table 1.

    1.3 Optional supplementary requirements are provided. These call for additional tests to be made, and when desired shall be stated in the order, together with the number of such tests required.

    1.4 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. The inch-pound units shall apply unless the M designation of this specification is specified in the order.

    Note 1—The dimensionless designator NPS (nominal pipe size) has been substituted in this standard for such traditional terms as nominal diameter, size, and nominal size.

    TABLE 1 Chemical Requirements

    UNS Designa-
    tionsA
    Composition, %
    Car-
    bon,
    max
    Man-
    ganese,
    max
    Phos-
    phorus,
    max
    Sulfur,
    max
    Sili-
    con
    Nickel
    Chromium
    Molyb-
    denum
    Tita-
    nium
    Colum-
    bium
    Cerium
    Other Elements
    TP201S201000.155.57.50.0600.0301.0016.018.03.55.5. . .. . .. . .. . .N 0.25
    TP201LNS201530.036.47.50.0450.0150.7516.017.54.05.0. . .. . .. . .. . .N 0.100.25,
    Cu 1.00
    TP304S304000.08 2.000.0450.0301.00 max8.011.018.020.0. . .. . .. . .. . .. . .
    TP304LS304030.0352.000.0450.0301.00 max8.012.018.020.0. . .. . .. . .. . .. . .
    TP309CbS309400.08 2.000.0450.0301.00 max12.016.022.024.0. . .. . .. . .Cb 10 × C min, 1.10 max
    TP309SS309080.08 2.000.0450.0301.00 max12.015.022.024.0. . .. . .. . .
    TP310CbS310400.08 2.000.0450.0301.00 max19.022.024.026.0. . .. . .. . .Cb 10 × C min, 1.10 max
    TP310SS310080.08 2.000.0450.0301.00 max19.022.024.026.0. . .. . .. . .
    TP316S316000.08 2.000.0450.0301.00 max10.014.016.018.02.003.00. . .. . .. . .
    TP316L
    S31603
    0.035
    2.00
    0.045
    0.030
    1.00 max
    10.014.0
    16.018.0
    2.003.00
    . . . . . .. . .
    . . .
    TP317
    S31700
    0.08
    2.00
    0.045
    0.030
    1.00 max
    11.015.0
    18.020.0
    3.04.0
    . . .. . . . . ....
    . . .S317270.0301.000.0300.0301.00 max14.516.517.519.03.84.5. . .. . .. . .N 0.150.21
    Cu 2.84.0
    . . .S320530.0301.000.0300.0101.00 max24.026.022.024.05.06.0. . .. . .. . .N 0.170.22
    TP321S321000.08 2.000.0450.0301.00 max9.0012.017.020.0. . .B. . .. . .. . .
    TP347S347000.08 2.000.0450.0301.00 max9.0012.017.019.0. . .. . .C. . .. . .
    TP348S348000.08 2.000.0450.0301.00 max9.0012.017.019.0. . .. . .D. . .. . .
    . . . S31254
    0.020
    1.00
    0.030
    0.010
    0.80 max
    17.518.5
    19.519.5
    6.06.5
    . . . . . .. . . Cu 0.501.00
    N 0.180.22
    . . .
    S30815
    0.050.10
    0.80
    0.040
    0.030
    1.402.00
    10.012.0
    20.022.0
    . . . . . . . . .0.030.08
    N 0.140.20
    . . .S31725
    0.030
    2.00
    0.045
    0.030
    1.00 max
    13.517.5
    18.020.0
    4.05.0
    . . . . . .. . . N 0.020 max
    . . .S31726
    0.030
    2.00
    0.045
    0.030
    1.00 max
    14.517.5
    17.020.0
    4.05.0
    . . . . . .. . . N 0.100.20
    . . .
    S34565
    0.030
    5.07.0
    0.030
    0.010
    1.00 max
    16.018.0
    23.025.0
    4.05.0
    . . . 0.10 max
    . . . N 0.400.60
    . . .N08367 0.0302.00 0.040 0.030 1.00 max 23.525.5 20.022.0 6.07.0 . . .. . .. . .Cu 0.75 max
    Ni 0.180.25
    . . .S204000.0307.09.00.450.0301.00 max1.503.0015.017.0. . .. . .. . .. . .N 0.150.30

    A New designation established in accordance with ASTM E 527 and SAE J1086.

    B The titanium content shall be not less than 5 times the carbon content and not more than 0.70 %.

    C The columbium plus tantalum content shall be not less than 10 times the carbon content and not more than 1.10 %.

    D The columbium plus tantalum content shall be not less than 10 times the carbon content and not more than 1.10 %. The tantalum content shall be 0.10 % maximum, CO 0.20 % maximum.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels

    A480/A480M Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip

    A999/A999M Specification for General Requirements for Alloy and Stainless Steel Pipe

    E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)

    ASME Boiler and Pressure Vessel Code

    SectionIXWeldingQual

    AWS Standards

    A 5.11 Nickel and Nickel-Alloy Covered Welding Electrodes

    A 5.14 Nickel and Nickel-Alloy Bare Welding Rods and Electrodes

    A 5.22 Flux Cored Arc Welding

    A 5.30 Consumable Weld Inserts for Gas Tungsten Arc Welding

    A 5.4 Corrosion-Resisting Chromium and Chromium-Nickel Steel Covered Welding Electrodes

    A 5.9 Corrosion-Resisting Chromium and Chromium-Nickel Steel Welding Rods and Bare Electrodes

    Other Standard

    SAEJ1086 Practice for Numbering Metals and Alloys (UNS) Available from Society of Automotive Engineers (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001, http://www.sae.org.


    ICS Code

    ICS Number Code 23.040.10 (Iron and steel pipes)

    UNSPSC Code

    UNSPSC Code 40171621(Industrial welded stainless steel pipe)


    Referencing This Standard

    DOI: 10.1520/A0409_A0409M-08A

    ASTM International is a member of CrossRef.


    Citation Format

    ASTM A409 / A409M-08a, Standard Specification for Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service, ASTM International, West Conshohocken, PA, 2008, www.astm.org

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