ASTM B233 - 97(2012)

    Standard Specification for Aluminum 1350 Drawing Stock for Electrical Purposes

    Active Standard ASTM B233 | Developed by Subcommittee: B01.07

    Book of Standards Volume: 02.03


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    Abstract

    This specification covers aluminium 1350 drawing stock for electrical purposes. The stock shall conform to the chemical composition requirements. The stock shall be uniform in quality and temper and shall be suitable for drawing into wire. The tensile strength tests and requirements for the respective tempers of stock are presented in details. The stock shall be furnished in continuous-length coils without joints, unless otherwise agreed upon between the manufacturer and purchaser. The electrical resistivity tests shall be made on full-section samples of the stock.

    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 drawing stock 0.375 in. (9.52 mm) to 1.000 in. (25.40 mm) in diameter, in the tempers shown in Table 1, for drawing into wire for electrical conductors (Explanatory Note 1 and Note 2).

    TABLE 1 Tensile Property LimitsA

    Temper

    Tensile Strength

    ksi

    MPa

    1350-O

     8.5–14.0

     59–97

    1350-H12 and -H22

    12.0–17.0

     83–117

    1350-H14 and -H24

    15.0–20.0A

    103–138

    1350-H16 and -H26

    17.0–22.0A

    117–152

    A Applicable to stock sizes through 0.500-in. (12.70-mm) diameter. The values to apply for larger sizes in these tempers shall be negotiated at time of inquiry.

    1.2 The SI values of density and resistivity are to be regarded as the standard. For all other properties the inch-pound values are to be regarded as standard and the SI units may be approximate.

    Note 1Prior to 1975, aluminum 1350 was designated as EC aluminum.

    Note 2The aluminum and temper designations conform to ANSI H35.1. Aluminum 1350 corresponds to unified numbering system A91350 in accordance with Practice E527.
    TABLE 2 Chemical RequirementsA

    Element

    Composition, %

    Silicon, max

      0.10

    Iron, max

      0.40

    Copper, max

      0.05

    Manganese, max

      0.01

    Chromium, max

      0.01

    Zinc, max

      0.05

    Boron, max

      0.05

    Gallium, max

      0.03

    Vanadium plus titanium, total, max

      0.02

    Other elements, each, max

      0.03

    Other elements, total, max

      0.10

    Aluminum, min

     99.50

    A Analysis shall regularly be made only for the elements specified in this table. If, however, the presence of other elements is suspected or indicated in amounts greater than the specified limits, further analysis shall be made to determine that these elements are not present in amounts in excess of the specified limits.
    TABLE 3 Electrical Resistivity Limits

    Temper

    Resistivity, Ω·
    mm 2/m, max

    Equivalent Volume
    Conductivity,
    % IACS, min

    1350-O

    0.027899

    61.8

    1350-H12 and -H22

    0.028035

    61.5

    1350-H14 and -H24

    0.028080

    61.4

    1350-H16 and -H26

    0.028126

    61.3


    TABLE 4 Equivalent Resistivity Values at 20°CA

    Material

    Volume Conductivity,
    % IACS

    Resistivity Constants

    Volume

    Ω·mm 2/m

    Ω·cmil/ft

    μΩ·in.

    μΩ·cm

    Copper

    100

    0.017241

    10.371

    0.67879

    1.7241

     

     

     

     

     

     

    Aluminum

      61.3

    0.028126

    16.919

    1.1073

    2.8126

     

      61.4

    0.028080

    16.891

    1.1055

    2.8080

     

      61.5

    0.028035

    16.864

    1.1037

    2.8035

     

      61.8

    0.027899

    16.782

    1.0984

    2.7899

    A The equivalent resistivity values for 100 % IACS conductivity were each computed from the fundamental IEC value (1/58  Ω·mm2/m) using conversion factors each accurate to at least seven significant figures. Corresponding values for other conductivities (aluminum) were derived from these by multiplying by the reciprocal of the conductivity ratios accurate to at least seven significant figures.
    TABLE 5 Diameter Tolerances

    Specified Diameter, in.
    (mm)

    Tolerance, in. (mm), Plus or Minus

    Deviation of MeanA
    Diameter from
    Specified Diameter

    Deviation at Any
    Point from
    Specified Diameter

    0.375–0.500 (9.52–12.70)
    0.501–1.00 (12.73–25.40)

    0.020 (0.51)
    0.025 (0.64)

    0.030 (0.76)
    0.035 (0.89)

    A For this specification, mean diameter is the average of the maximum diameter and the minimum diameter measured in the same transverse plane along the length.


    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

    B354 Terminology Relating to Uninsulated Metallic Electrical Conductors

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

    B830 Specification for Uniform Test Methods and Frequency

    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

    E227 Test Method for Optical Emission Spectrometric Analysis of Aluminum and Aluminum Alloys by the Point-to-Plane Technique

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

    American National Standard

    ANSIH35.1 Alloy and Temper Designation Systems for Aluminum


    ICS Code

    ICS Number Code 77.150.10 (Aluminium products)

    UNSPSC Code

    UNSPSC Code 26121500(Electrical wire)


    Referencing This Standard

    DOI: 10.1520/B0233-97R12

    ASTM International is a member of CrossRef.

    Citation Format

    ASTM B233-97(2012), Standard Specification for Aluminum 1350 Drawing Stock for Electrical Purposes, ASTM International, West Conshohocken, PA, 2012, www.astm.org

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