ASTM A671/A671M-10

    Standard Specification for Electric-Fusion-Welded Steel Pipe for Atmospheric and Lower Temperatures

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    1. Scope

    1.1 This specification covers electric-fusion-welded steel pipe with filler metal added, fabricated from pressure vessel quality plate of several analyses and strength levels and suitable for high-pressure service at atmospheric and lower temperatures. Heat treatment may or may not be required to attain the desired 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. [400 mm] in outside diameter or larger and of 1/4 in. [6 mm] wall thickness or greater. 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 5.1.

    1.3.2 Class designates the type of heat treatment performed during 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):

    ClassHeat Treatment on PipeRadiography, see SectionPressure Test, see:
    20stress relieved, see 5.3.1nonenone
    21stress relieved, see 5.3.19none
    22stress relieved, see
    23stress relieved, see 5.3.1none8.3
    30normalized, see 5.3.2nonenone
    31normalized, see 5.3.29none
    32normalized, see
    33normalized, see 5.3.2none8.3
    40normalized and tempered, see 5.3.3 nonenone
    41normalized and tempered, see 5.3.39 none
    42normalized and tempered, see 5.3.3 9 8.3
    43normalized and tempered, see 5.3.3 none 8.3
    50quenched and tempered, see 5.3.4 none none
    51quenched and tempered, see 5.3.4 9none
    52quenched and tempered, see 5.3.49 8.3
    53quenched and tempered, see 5.3.4none 8.3
    60normalized and precipitation heat treated nonenone
    61normalized and precipitation heat treated 9 none
    62normalized and precipitation heat treated 9 8.3
    63normalized and precipitation heat treated none8.3
    70 quenched and precipitation heat treatednone none
    71 quenched and precipitation heat treated9 none
    72quenched and precipitation heat treated98.3
    73 quenched and precipitation heat treatednone 8.3

    Note 1—Selection of materials should be made with attention to temperature of service. For such guidance, Specification A20/A20M may be consulted.

    1.4 The values stated in either SI units or inch-pound 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 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

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

    A370 Test Methods and Definitions for Mechanical Testing of Steel Products

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

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

    A577/A577M Specification for Ultrasonic Angle-Beam Examination of Steel Plates

    A578/A578M Specification for Straight-Beam Ultrasonic Examination of Rolled Steel Plates for Special Applications

    E110 Test Method for Rockwell and Brinell Hardness of Metallic Materials by Portable Hardness Testers

    E165/E165M Practice for Liquid Penetrant Examination for General Industry

    E709 Guide for Magnetic Particle Testing

    ICS Code

    ICS Number Code 23.040.10 (Iron and steel pipes)

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

    DOI: 10.1520/A0671_A0671M-10

    Citation Format

    ASTM A671 / A671M-10, Standard Specification for Electric-Fusion-Welded Steel Pipe for Atmospheric and Lower Temperatures, ASTM International, West Conshohocken, PA, 2010,

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