If you are an ASTM Compass Subscriber and this document is part of your subscription, you can access it for free at ASTM Compass
    ASTM A541 / A541M - 05(2020)

    Standard Specification for Quenched and Tempered Carbon and Alloy Steel Forgings for Pressure Vessel Components

    Active Standard ASTM A541 / A541M | Developed by Subcommittee: A01.06

    Book of Standards Volume: 01.05

      Format Pages Price  
    PDF 5 $54.00   ADD TO CART
    Hardcopy (shipping and handling) 5 $54.00   ADD TO CART


    This specification covers quenched and tempered carbon and alloy steel forgings for pressure vessel components. Heat and product analyses shall be performed to evaluate material conformance with chemical composition requirements. Tension and Charpy V-notch tests shall also be carried out to assess material conformance with mechanical property requirements such as, tensile strength, yield strength, elongation, reduction of area, and Charpy value. Sampling of test specimens for mechanical examination shall be done by either one of four methods specified by the purchaser. Repair welding may also be made at the option of the purchaser.

    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 specification2 covers requirements for quenched and tempered carbon and alloy steel forgings for pressure vessel components.

    1.2 All grades are considered weldable under proper conditions. Welding technique is of fundamental importance, and it is presupposed that welding procedure and inspection will be in accordance with approved methods for the grade of material used.

    Note 1: Grades 1 and 1A have different chemistries but the same mechanical requirements.

    Note 2: Designations have been changed as follows:





    Grade 1

    Class 1

    Grade 1A

    Class 1A

    Grade 1C

    Class 4

    Grade 2 Class 1

    Class 2

    Grade 2 Class 2

    Class 2A

    Grade 3 Class 1

    Class 3

    Grade 3 Class 2

    Class 3A

    Grade 4N Class 1

    Class 7

    Grade 4N Class 2

    Class 7A

    Grade 4N Class 3

    Class 7B

    Grade 5 Class 1

    Class 8

    Grade 5 Class 2

    Class 8A

    Grade 11 Class 4

    Class 11C

    Grade 22 Class 3

    Class 22B

    Grade 22 Class 4

    Class 22C

    Grade 22 Class 5

    Class 22D

    Grade 22V

    Class 22V

    Grade 3V

    Class 3V

    1.3 The values stated in either inch-pound units or SI (metric) units are to be regarded separately as standard. Within the text and tables, the SI units are shown in brackets. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.

    1.4 Unless the order specifies the applicable “M” specification designation, the material shall be furnished to the inch-pound units.

    1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

    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

    A275/A275M Practice for Magnetic Particle Examination of Steel Forgings

    A370 Test Methods and Definitions for Mechanical Testing of Steel Products

    A388/A388M Practice for Ultrasonic Examination of Steel Forgings

    A788/A788M Specification for Steel Forgings, General Requirements

    E208 Test Method for Conducting Drop-Weight Test to Determine Nil-Ductility Transition Temperature of Ferritic Steels

    ICS Code

    ICS Number Code 77.140.30 (Steels for pressure purposes)

    UNSPSC Code

    UNSPSC Code 31132100(Steel forgings)

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

    DOI: 10.1520/A0541_A0541M-05R20

    Citation Format

    ASTM A541 / A541M-05(2020), Standard Specification for Quenched and Tempered Carbon and Alloy Steel Forgings for Pressure Vessel Components, ASTM International, West Conshohocken, PA, 2020, www.astm.org

    Back to Top