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ASTM B230-07(R2021) pdf free download

ASTM B230-07(R2021) pdf free download.Standard Specification for Aluminum 1350–H19 Wire for Electrical Purposes
1.1 This specification covers aluminum 1350–H19 (extra hard) round wire for electrical purposes.
1.2 The values stated in inch-pound or SI units are to be regarded separately as standard. The values in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.
1.2.1 For density, resistivity, and temperature, the values stated in SI units are to be regarded as standard. N OTE 1—Prior to 1975 aluminum 1350 was designated EC aluminum. N OTE 2—The aluminum and temper designations conform to ANSI H35.1/H35.1M. Aluminum 1350 corresponds to UNS A91350 in accor- dance with Practice E527. N OTE 3—For definitions of terms found in this specification relating to uninsulated electrical conductors see Terminology B354.
1.3 This international standard was developed in accor- dance with internationally recognized principles on standard- ization established in the Decision on Principles for the Development of International Standards, Guides and Recom- mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
12.1 No joints shall be made in the finished wire except as provided in 12.2. Joints may be made in the drawing stock and in the wire prior to final drawing and shall be in accordance with good commercial practice.
12.2 If agreed upon between the manufacturer and the purchaser, joints may be made during the final drawing or in the finished wire by electric-butt welding, cold-pressure welding, or electric-butt, cold-upset welding, subject to the following limitations.
12.2.1 For wire sizes from 0.0100 to 0.0555 in. [0.225 to 1.25 mm] in diameter not more than three such joints shall be present in any coil, reel, or spool ofthe specified nominal mass.
12.2.2 For wire sizes greater than 0.0500 in. [1.25 mm] diameter, not more than 10 % of the coils, reels, or spools shall contain such joints, and no such joint shall be closer than 50 ft [15 m] to another joint or to either end of the wire. Not more than two such joints shall be present in any coil, reel or spool of the specified nominal mass.
14.1 Diameter—Measure the diameter of each specimen with a micrometer caliper graduated in 0.0001-in. increments or measure the diameter of each specimen with a micrometer caliper graduated in minimum 0.005 mm increments for wires less than 1.00 mm in diameter, or minimum 0.01-mm incre- ments for wires 1.00 mm in diameter and larger. Take two measurements at one point, with the second measurement across the cross-sectional diameter 90° rotated from the first measurement. Average the two measurements to obtain the specimen diameter. Should the measured diameter of any specimen vary from the specified diameter by an amount greater than the tolerance permitted by Table 4, the lot shall be considered to not meet diameter requirements.
14.2 Finish—Make a visual surface finish inspection with the unaided eye (corrective lenses excepted). The surface finish shall meet the requirements of 6.1. Should any specimen be found unacceptable, the lot shall be considered to not meet surface finish requirements.
14.3 Tensile strength and elongation may be determined simultaneously. Obtain the tensile strength, in accordance with Test Methods B557 or B557M, by dividing the maximum load resisted by the tensile specimen by the original cross-sectional area of the specimen, with the tensile stress to be expressed in ksi [MPa]. Elongation is the percent increase in length of the tensile test specimen as measured between gage marks origi- nally spaced 10 in. [250 mm] apart on the specimen. Elonga- tion measurements are not required for wires <0.0500 in. [<1.25 mm] in diameter. Should any part of the fracture take place outside the elongation gage lines, or ifexamination ofthe tensile specimen indicates a flaw, the values obtained may not be representative and a test on another section of the specimen may be run (Explanatory Note 6).

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