ASTM B918/B918M-17a

    Standard Practice for Heat Treatment of Wrought Aluminum Alloys


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    1. Scope

    1.1 This practice is intended for use in the heat treatment of wrought aluminum alloys for general purpose applications.

    1.1.1 The heat treatment of wrought aluminum alloys used in specific aerospace applications is covered in AMS 2772.2

    1.1.2 Heat treatment of aluminum alloy castings for general purpose applications is covered in Practice B917/B917M.

    1.2 Times and temperatures appearing in the heat-treatment tables are typical for various forms, sizes, and manufacturing methods and may not provide the optimum heat treatment for a specific item.

    1.3 Some alloys in the 6xxx series may achieve the T4 temper by quenching from within the solution temperature range during or immediately following a hot working process, such as upon emerging from an extrusion die. Such alternatives to furnace heating and immersion quenching are indicated in Table 2, by Footnote L, for heat treatment of wrought aluminum alloys. However, this practice does not cover the requirements for a controlled extrusion press or hot rolling mill solution heat treatment. (Refer to Practice B807 for extrusion press solution heat treatment of aluminum alloys and to Practice B947 for hot rolling mill solution heat treatment of aluminum alloys.)3

    1.4 Units—The values stated in either Metric or US Customary units are to be regarded separately as standard. 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.

    1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

    1.6 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

    B557 Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products

    B557M Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products (Metric)

    B807/B807M Practice for Extrusion Press Solution Heat Treatment for Aluminum Alloys

    B881 Terminology Relating to Aluminum- and Magnesium-Alloy Products

    B917/B917M Practice for Heat Treatment of Aluminum-Alloy Castings From All Processes

    B947 Practice for Hot Rolling Mill Solution Heat Treatment for Aluminum Alloy Plate

    G69 Test Method for Measurement of Corrosion Potentials of Aluminum Alloys

    ANSI Standard

    H35.1/H35.1M


    ICS Code

    ICS Number Code 25.200 (Heat treatment); 77.150.10 (Aluminium products)

    Referencing This Standard
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    DOI: 10.1520/B0918_B0918M-17A

    Citation Format

    ASTM B918 / B918M-17a, Standard Practice for Heat Treatment of Wrought Aluminum Alloys, ASTM International, West Conshohocken, PA, 2017, www.astm.org

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