ASTM B247 - 20

    Standard Specification for Aluminum and Aluminum-Alloy Die Forgings, Hand Forgings, and Rolled Ring Forgings

    Active Standard ASTM B247 | Developed by Subcommittee: B07.03

    Book of Standards Volume: 02.02


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    Abstract

    This specification covers aluminum and aluminum-alloy die forgings, hand forgings, and rolled ring forgings and includes the following UNS alloy designations: A91100, A92014, A92018, A92025, A92219, A92618, A93003, A94032, A95083, A96061, A96066, A96151, A97049, A97050, A97075, A97076, and A97175. Tempers covered by this specification includes: H112, T4, T6, T61, T73, T74, T7352, T7452, T7454, T652, T852, and H111 as well as F and 01 types. The forgings may be manufactured by pressing, hammering, or rolling, at the option of the producer. Requirements for quality assurance, chemical analysis, tension and hardness tests, heat treatment, heat-treat response, and stress corrosion resistance and stress-corrosion cracking test are detailed. The forgings shall conform to the chemical composition requirements prescribed for aluminum, silicon, iron, copper, manganese, magnesium, chromium, nickel, zinc, zirconium, and titanium. Forgings having the specified thickness shall meet the requirements specified for the mechanical properties such as tensile strength, yield strength, elongation, and Brinell hardness.

    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 aluminum-alloy (Note 1) die forgings, hand forgings, and rolled ring forgings as shown in Table 2, Table 3, and Table 4 in Section 10 for heat-treatable alloy forgings supplied in the F and 01 tempers. The maximum thicknesses for forgings within the scope of this specification are as indicated in those tables.

    Note 1: Throughout this specification use of the term alloy in the general sense includes aluminum as well as aluminum alloy.

    Note 2: For forging stock supplied as rolled, cold-finished bar, extruded bar, or rod see Specification B211/B211M.

    1.2 Alloy and temper designations are in accordance with ANSI H35.1/H35.1(M). The equivalent Unified Numbering System alloy designations are those of Table 1 preceded by A9, for example, A91100 for aluminum 1100 in accordance with Practice E527.

    1.3 For acceptance criteria for inclusion of new aluminum and aluminum alloys in this specification, see Annex A2.

    1.4 This specification is the inch-pound companion to Specification B247M; therefore, no SI equivalents are presented in the specification.

    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

    B211/B211M Specification for Aluminum and Aluminum-Alloy Rolled or Cold Finished Bar, Rod, and Wire

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

    B594 Practice for Ultrasonic Inspection of Aluminum-Alloy Wrought Products

    B660 Practices for Packaging/Packing of Aluminum and Magnesium Products

    B881 Terminology Relating to Aluminum- and Magnesium-Alloy Products

    B918/B918M Practice for Heat Treatment of Wrought Aluminum Alloys

    B985 Practice for Sampling Aluminum Ingots, Billets, Castings and Finished or Semi-Finished Wrought Aluminum Products for Compositional Analysis

    E10 Test Method for Brinell Hardness of Metallic Materials

    E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

    E165/E165M Practice for Liquid Penetrant Testing for General Industry

    E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)

    E716 Practices for Sampling and Sample Preparation of Aluminum and Aluminum Alloys for Determination of Chemical Composition by Spark Atomic Emission Spectrometry

    E1004 Test Method for Determining Electrical Conductivity Using the Electromagnetic (Eddy Current) Method

    E1251 Test Method for Analysis of Aluminum and Aluminum Alloys by Spark Atomic Emission Spectrometry

    E3061 Test Method for Analysis of Aluminum and Aluminum Alloys by Inductively Coupled Plasma Atomic Emission Spectrometry (Performance Based Method)

    G47 Test Method for Determining Susceptibility to Stress-Corrosion Cracking of 2XXX and 7XXX Aluminum Alloy Products

    Other Standard

    CEN EN 14242 Aluminum and aluminum alloys. Chemical Analysis. Inductively coupled plasma optical emission spectral analysis

    National Aerospace Standard

    NAS 410 Certification and Qualification of Nondestructive Test Personnel

    Federal Standard

    Fed. Std. No. 123 Marking for Shipment (Civil Agencies)

    Military Standard

    MIL-STD-129

    SAE Standard

    AMS 2772 Heat Treatment of Aluminum Alloys Raw Materials

    ANSI Standard

    H35.1/H35.1(M) Alloy and Temper Designation Systems Available from Aluminum Association, Inc., 1400 Crystal Dr. Blvd., Suite 430, Arlington, VA 22202, http://www.aluminum.org.


    ICS Code

    ICS Number Code 77.150.10 (Aluminium products)

    UNSPSC Code

    UNSPSC Code 31132300(Aluminum forgings); 31301306(Aluminum impression die machined 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/B0247-20

    Citation Format

    ASTM B247-20, Standard Specification for Aluminum and Aluminum-Alloy Die Forgings, Hand Forgings, and Rolled Ring Forgings, ASTM International, West Conshohocken, PA, 2020, www.astm.org

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