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    ASTM A269 / A269M - 15a

    Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service

    Active Standard ASTM A269 / A269M | Developed by Subcommittee: A01.10

    Book of Standards Volume: 01.01

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    Abstract

    This specification covers nominal-wall-thickness, seamless and welded austenitic steel tubing for general corrosion-resisting and low- or high-temperature service. All material shall be furnished in the heat-treated condition. The steel shall conform to the chemical composition requirements. Different mechanical test requirements that includes, flaring test, flange test, hardness test, and reverse flattening test are presented. Also, each tube shall be subjected to the non-destructive electric test or the hydrostatic test. Finally the hardness requirements for different grades of tubes are highlighted.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    1. Scope

    1.1 This specification covers grades of nominal-wall-thickness, stainless steel tubing for general corrosion-resisting and low- or high-temperature service, as designated in Table 1.

    Grade

    Composition, %

    TP
    XM-29

    . . .

    . . .

    . . .

    . . .

    . . .

    . . .

    . . .

    . . .

    . . .

    . . .

    . . .

    . . .

    . . .

    . . .

    UNS DesignationA

    S24000

    S31254

    S31266

    S31725

    S31726

    S31727

    S32053

    S30600A

    S32654

    S34565

    S35045

    N08367

    N08925

    N08926

    N08904

    Carbon

    0.08

    0.020

    0.030
    max

    0.035

    0.035

    0.030

    0.030

    0.018

    0.020

    0.030

    0.06–
    0.10

    0.030

    0.020

    0.020

    0.020

    Manganese

    11.5–
    14.5

    1.00

    2.00–4.00

    2.00

    2.00

    1.00

    1.00

    2.0

    2.0–
    4.0

    5.0–
    7.0

    1.50

    2.00

    1.00

    2.00

    2.00

    Phosphorus

    0.060

    0.030

    0.035

    0.045

    0.045

    0.030

    0.030

    0.020

    0.030

    0.030

    0.045

    0.040

    0.045

    0.030

    0.040

    Sulfur.

    0.030

    0.015

    0.020

    0.030

    0.030

    0.030

    0.010

    0.020

    0.005

    0.010

    0.015

    0.030

    0.030

    0.010

    0.030

    Silicon

    1.00

    0.80

    1.00

    1.00

    1.00

    1.00

    1.00

    3.7–4.3

    0.50

    1.00

    1.00

    1.00

    0.50

    0.50

    1.00

    Nickel

    2.3–
    3.7

    17.5–
    18.5

    21.0–24.0

    13.5–
    17.5

    14.5–
    17.5

    14.5–
    16.5

    24.0–
    26.0

    14.0–
    15.5

    21.0–
    23.0

    16.0–
    18.0

    32.0–
    37.0

    23.5–
    25.5

    24.0–26.0

    24.0–
    26.0

    23.0–
    28.0

    Chromium

    17.0–
    19.0

    19.5–
    20.5

    23.0–25.0

    18.0–
    20.0

    17.0–
    20.0

    17.5–
    19.0

    22.0–
    24.0

    17.0–
    18.5

    24.0–
    25.0

    23.0–
    25.0

    25.0–
    29.0

    20.0–
    22.0

    19.0–21.0

    19.0–
    21.0

    19.0–
    23.0

    Molybdenum

    ...

    6.0–
    6.5

    5.2–6.2

    4.0–
    5.0

    4.0–
    5.0

    3.8–
    4.5

    5.0–
    6.0

    0.20
    max

    7.0–
    8.0

    4.0–
    5.0

     

    6.0–
    7.0

    6.0–7.0

    6.0–
    7.0

    4.0–
    5.0

    Titanium

    . . .

    . . .

    . . .

    . . .

    . . .

    . . .

    . . .

    . . .

    . . .

    . . .

    0.15–
    0.60

    . . .

    . . .

    . . .

    . . .

    Columbium

    . . .

    . . .

    . . .

    . . .

    . . .

    . . .

    . . .

    . . .

    . . .

    0.10
    max

    . . .

    . . .

    . . .

    . . .

    . . .

    Tantalum

    . . .

    . . .

    . . .

    . . .

    . . .

     

    . . .

     

    . . .

    . . .

    . . .

    . . .

    . . .

    . . .

    . . .

    NitrogenF

    0.20–
    0.40

    0.18–
    0.25

    0.35–0.60

    0.20
    max

    0.10–
    0.20

    0.15–
    0.21

    0.17–
    0.22

     

    0.45–
    0.55

    0.40–
    0.60

    . . .

    0.18–
    0.25

    0.10–0.20

    0.15–
    0.25

    0.10
    max

    Vanadium

    . . .

     

     

    . . .

    . . .

     

    . . .

     

    . . .

     

    . . .

    . . .

    . . .

    . . .

    . . .

     Copper

    . . .

    0.50–
    1.00

    1.00–2.50

    . . .

    . . .

    2.8–
    4.0

    . . .

    0.50
    max

    0.30–
    0.60

    . . .

    0.75

    0.75
    max

    0.80–1.50

    0.50–
    1.50

    1.00–
    2.00

     Others

    . . .

    . . .

    W 1.50–2.50

    . . .

    . . .

    . . .

    . . .

    . . .

    . . .

    . . .

    Al
    0.15–
    0.60

    . . .

    . . .

    . . .

    . . .

    (A) New designation established in accordance with Practice E527 and SAE J1086.
    (B) For small diameter or thin walls, or both, where many drawing passes are required, a carbon maximum of 0.040 % is necessary in grades TP 304L, TP 304LN, 316L and 316LN. Small outside diameter tubes are defined as those with less than 0.500 in. [12.7 mm] in outside diameter and light walls are those less than 0.049 in. [1.2 mm] in minimum wall thickness.
    (C) Maximum, unless otherwise indicated. Where ellipses (. . .) appear in this table, there are no requirements and analysis for the element need not be determined or reported.
    (D) Grade TP 321 shall have a titanium content of not less than five times the sum of the carbon and nitrogen content and not more than 0.70 %.
    (E) Grade TP 348 shall have a columbium plus tantalum content of not less than ten times the carbon content and not more than 1.10 %.
    (F) The method of analysis for nitrogen shall be a matter of agreement between the purchaser and manufacturer.

    1.2 The tubing sizes and thicknesses usually furnished to this specification are 1/4 in. [6.4 mm] in inside diameter and larger and 0.020 in. [0.51 mm] in nominal wall-thickness and heavier.

    1.3 Mechanical property requirements do not apply to tubing smaller than 1/8 in. [3.2 mm] in inside diameter or 0.015 in. [0.38 mm] in thickness.

    Note 1: Additional testing requirements may apply for use in ASME B31.3 applications.

    1.4 Optional supplementary requirements are provided and, when one or more of these are desired, each shall be so stated in the order.

    1.5 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, 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 non-conformance with the standard. The inch-pound units shall apply unless the “M” designation of this specification is specified in the order.


    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

    A632 Specification for Seamless and Welded Austenitic Stainless Steel Tubing (Small-Diameter) for General Service

    A1016/A1016M Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless Steel Tubes

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

    ASME Piping Code

    ASME B31.3 Process Piping Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Two Park Ave., New York, NY 10016-5990, http://www.asme.org.

    Other Standard

    SAE J1086

    ICS Code

    ICS Number Code 23.040.10 (Iron and steel pipes)

    UNSPSC Code

    UNSPSC Code 40182400(Seamless stainless steel tubes); 40181900(Welded stainless steel tubes)

    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/A0269_A0269M-15A

    Citation Format

    ASTM A269 / A269M-15a, Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service, ASTM International, West Conshohocken, PA, 2015, www.astm.org

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