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ASTM B105-05(2020)

Standard Specification for Hard-Drawn Copper Alloy Wires for Electric Conductors (Withdrawn 2023)
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This specification covers hard-drawn round copper alloy wires for electric conductors.

The wires shall be made in any one of ten distinct alloys designated 8.5, 13, 15, 20, 30, 40, 55, 74, 80, and 85 in accordance with their increasing electrical conductivities.

Specimens shall undergo tests to which they shall meet the required values for:

  • chemical composition,
  • electrical resistivity,
  • mechanical and physical properties.

The mechanical properties to be examined are elongation and tensile strength, while the physical properties in consideration are wire diameter, area, and density.

The completed wire, to which no joints are to be made, shall be free from all imperfections not consistent with the best commercial practice.

1.1 This specification covers hard-drawn round copper alloy wires for electric conductors.

1.2 The copper alloy wires shall be made in any one of ten distinct alloys designated 8.5 to 85 in accordance with their increasing conductivities or designated by assigned UNS numbers (see Explanatory Note 1) as follows:

  • Alloy 8.5 - C65100
  • Alloy 13 - C51000
  • Alloy 15 -
  • Alloy 20 -
  • Alloy 30 - C50700
  • Alloy 40 -
  • Alloy 55 - C16500
  • Alloy 74 - C19600
  • Alloy 80 - C16200
  • Alloy 85 - C16200

1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.3.1 Exception—The SI values of density and resistivity are to be regarded as standard.

1.4 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.

SDO ASTM: ASTM International
Document Number B105
Publication Date April 1, 2020
Language en - English
Page Count 5
Revision Level 05(2020)
Supercedes
Committee B05.02
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