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    ASTM B236 - 07(2015)

    Standard Specification for Aluminum Bars for Electrical Purposes (Bus Bars)

    Active Standard ASTM B236 | Developed by Subcommittee: B07.03

    Book of Standards Volume: 02.02

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    This specification covers Aluminum 1350 bar for electric conductors in the tempers. The tempers are designated as H12, H112, and H111. The products covered by this specification shall be produced by extruding or rolling. Bars in the H12 temper shall be furnished with a rolled mill finish; bars in the H111 temper, with an as-extruded mill finish; and bars in the H112 temper, with a rolled mill finish except that the edges shall be as sawed. The bars shall be subjected to tension test to determine their tensile and yield strengths. Bars in the H12, and H111, and H112 tempers shall be capable of being bent flatwise at room temperature, through an angle of 90° around a pin or mandrel having a radius equal to the thickness of the specimen, without cracking or evidence of slivers or other imperfections. For a flatwise bend, the pin or mandrel shall be 90° from the working (extrusion or rolling) direction, and across the greater (width) dimension of the bar. The required 90° bend shall be in the working (extrusion or rolling) direction. Bars in the H12 and H111 tempers whose width-to-thickness ratios are not in excess of 12 and whose width is 100 mm or less, shall be capable of being bent at room temperature edgewise 90° around a mandrel without cracking or localized thinning to less than 90 % of the maximum thickness within the central 60° of the bend when measured along the outer edge of the bend. Electrical resistivity and conductivity shall be measured.

    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 specification covers Aluminum 1350 bar for electric conductors in the tempers shown in Table 1.

    (A) For purposes of determining conformance with this specification, each value for tensile strength and yield strength shall be rounded to the nearest 0.1 ksi in accordance with the rounding method of Practice E29.
    (B) See Annex A1.

    1.2 Aluminum and temper designations are in accordance with ANSI H35.1/H35.1(M). The equivalent Unified Numbering System designation is A91350 in accordance with Practice E527.

    Note 1: For Alloy 6101 bus conductors, refer to Specification B317/B317M.

    Note 2: Prior to 1975, Aluminum 1350 was designated as EC aluminum.

    1.3 A complete metric companion to Specification B236 has been developed—B236M; therefore, no metric equivalents appear in this specification.

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

    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

    B193 Test Method for Resistivity of Electrical Conductor Materials

    B317/B317M Specification for Aluminum-Alloy Extruded Bar, Rod, Tube, Pipe, Structural Profiles, and Profiles for Electrical Purposes (Bus Conductor)

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

    B660 Practices for Packaging/Packing of Aluminum and Magnesium Products

    B666/B666M Practice for Identification Marking of Aluminum and Magnesium Products

    B881 Terminology Relating to Aluminum- and Magnesium-Alloy Products

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

    E34 Test Methods for Chemical Analysis of Aluminum and Aluminum-Base Alloys

    E55 Practice for Sampling Wrought Nonferrous Metals and Alloys for Determination of Chemical Composition

    E290 Test Methods for Bend Testing of Material for Ductility

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

    E607 Test Method for Atomic Emission Spectrometric Analysis Aluminum Alloys by the Point to Plane Technique Nitrogen Atmosphere

    E716 Practices for Sampling and Sample Preparation of Aluminum and Aluminum Alloys for Determination of Chemical Composition by Spectrochemical Analysis

    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

    ANSI Standards

    H35.1/H35.1(M) Alloy and Temper Designation Systems for Aluminum

    Military Standard

    MIL-STD-129 Marking for Shipment and Storage

    ICS Code

    ICS Number Code 29.060.10 (Wires); 77.150.10 (Aluminium products)

    UNSPSC Code

    UNSPSC Code 30264900(Aluminum bars)

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

    DOI: 10.1520/B0236-07R15

    Citation Format

    ASTM B236-07(2015), Standard Specification for Aluminum Bars for Electrical Purposes (Bus Bars), ASTM International, West Conshohocken, PA, 2015, www.astm.org

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