ASTM A737/A737M-99

    Standard Specification for Pressure Vessel Plates, High-Strength, Low-Alloy Steel


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    1. Scope

    1.1 This specification covers high-strength low-alloy steel plates for service in welded pressure vessels and piping components.

    1.2 This material is particularly intended for piping and pressure vessel applications where high strength and improved toughness are required.

    1.3 Two grades, designated B and C, are covered by this specification. Grade B provides a minimum yield strength of 50 ksi [345 MPa]. Grade C provides a minimum yield strength of 60 ksi [415 MPa].

    1.4 The maximum thickness of plates is limited only by the capacity of the chemical composition and heat treatment to meet the specified mechanical property requirements. Individual manufacturers should be consulted on thickness limitations since current industry limitations have not been ascertained to date.

    1.5 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 are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in noncomformance with the specification.


    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

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

    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


    ICS Code

    ICS Number Code 77.140.30 (Steels for pressure purposes)

    UNSPSC Code

    UNSPSC Code 30102204(Steel plate)


    Referencing This Standard

    DOI: 10.1520/A0737_A0737M-99

    ASTM International is a member of CrossRef.


    Citation Format

    ASTM A737 / A737M-99, Standard Specification for Pressure Vessel Plates, High-Strength, Low-Alloy Steel, ASTM International, West Conshohocken, PA, 1999, www.astm.org

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