ASTM A691-98(2002)

    Standard Specification for Carbon and Alloy Steel Pipe, Electric-Fusion-Welded for High-Pressure Service at High Temperatures


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    1. Scope

    1.1 This specification covers carbon and alloy steel pipe, electric-fusion-welded with filler metal added, fabricated from pressure-vessel-quality plate of several analyses and strength levels and suitable for high-pressure service at high temperatures. Heat treatment may or may not be required to attain the desired mechanical properties or to comply with applicable code requirements. Supplementary requirements are provided for use when additional testing or examination is desired.

    1.2 The specification nominally covers pipe 16 in. (405 mm) in outside diameter and larger with wall thicknesses up to 3 in. (75 mm) inclusive. Pipe having other dimensions may be furnished provided it complies with all other requirements of this specification.

    1.3 Several grades and classes of pipe are provided.

    1.3.1 Grade designates the type of plate used as listed in .

    1.3.2 Class designates the type of heat treatment performed in the manufacture of the pipe, whether the weld is radiographically examined, and whether the pipe has been pressure tested as listed in 1.3.3.

    1.3.3 Class designations are as follows (Note 1):

    Class Heat Treatment on PipeRadiography, see Section Pressure Test, see Section
    10nonenonenone
    11none9none
    12none98.3
    13nonenone8.3
    20 stress relieved, see 5.3.1none none
    21stress relieved, see 5.3.19none
    22 stress relieved, see 5.3.198.3
    23 stress relieved, see 5.3.1none 8.3
    30normalized, see 5.3.2 none none
    31normalized, see 5.3.29none
    32normalized, see 5.3.298.3
    33normalized, see 5.3.2 none 8.3
    40normalized and tempered, see 5.3.3none none
    41 normalized and tempered, see 5.3.39none
    42 normalized and tempered, see 5.3.398.3
    43 normalized and tempered, see 5.3.3none 8.3
    50 quenched and tempered, see 5.3.4none none
    51quenched and tempered, see 5.3.49none
    52 quenched and tempered, see 5.3.498.3
    53 quenched and tempered, see 5.3.4none 8.3
    Note 1—Selection of materials should be made with attention to temperature of service. For such guidance, Specification A 20/A 20M may be consulted.

    1.4 Optional requirements of a supplementary nature are provided, calling for additional tests and control of repair welding, when desired.

    1.5 The values stated in inch-pound units are to be regarded as the standard.


    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

    A20/A20M Specification for General Requirements for Steel Plates for Pressure Vessels

    A204/A204M Specification for Pressure Vessel Plates, Alloy Steel, Molybdenum

    A299/A299M Specification for Pressure Vessel Plates, Carbon Steel, Manganese-Silicon

    A370 Test Methods and Definitions for Mechanical Testing of Steel Products

    A387/A387M Specification for Pressure Vessel Plates, Alloy Steel, Chromium-Molybdenum

    A435/A435M Specification for Straight-Beam Ultrasonic Examination of Steel Plates

    A530/A530M Specification for General Requirements for Specialized Carbon and Alloy Steel Pipe

    A537/A537M Specification for Pressure Vessel Plates, Heat-Treated, Carbon-Manganese-Silicon Steel

    E165 Practice for Liquid Penetrant Examination for General Industry

    E709 Guide for Magnetic Particle Testing

    ASME Boiler and Pressure Vessel Code

    SectionIX,WeldingQua


    ICS Code

    ICS Number Code 23.040.10 (Iron and steel pipes)

    UNSPSC Code

    UNSPSC Code 40171601(Industrial welded carbon steel pipe)


    Referencing This Standard

    DOI: 10.1520/A0691-98R02

    ASTM International is a member of CrossRef.


    Citation Format

    ASTM A691-98(2002), Standard Specification for Carbon and Alloy Steel Pipe, Electric-Fusion-Welded for High-Pressure Service at High Temperatures, ASTM International, West Conshohocken, PA, 1998, www.astm.org

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