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ASTM B452-22

Current Revision

Standard Specification for Copper-Clad Steel Wire for Electronic Application

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1.1 This specification covers bare round copper-clad steel wire for electronic application.

1.2 Four classes of copper-clad steel wire are covered as follows:

1.2.1 Class 30HS—Nominal 30 % conductivity high-strength hard-drawn,

1.2.2 Class 30HS-A—Nominal 30 % conductivity high-strength annealed,

1.2.3 Class 40HS—Nominal 40 % conductivity high-strength hard-drawn, and

1.2.4 Class 40HS-A—Nominal 40 % conductivity high-strength annealed.

1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are in SI units.

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.


This specification covers bare round copper-clad steel wire for electronic application. Four classes of copper-clad steel wire are covered as Class 30HS, 30A, 40HS, and 40A. The wire shall consist of a core of homogeneous open-hearth, electric-furnace, or basic-oxygen steel with a continuous outer cladding of copper thoroughly bonded to the core throughout. The copper-lad steel wire shall conform to the tensile strength and elongation requirements. Electrical resistivity test shall be performed at a specified temperature of each class of wire and shall not exceed the values prescribed in this specification. Dimensional measurements shall be made with a micrometer caliper and shall withstand torsion test without fracturing. Copper cladding to the steel of each of the four specimens shall conform to the adhesion criterion. Surface finish shall meet the required allowable number of defects.


SDO ASTM: ASTM International
Document Number B452
Publication Date May 1, 2022
Language en - English
Page Count 5
Revision Level 22
Supercedes
Committee B01.06
Publish Date Document Id Type View
May 1, 2022 B0452-22 Revision
Oct. 1, 2009 B0452-09 Revision
April 10, 2002 B0452-02 Revision
April 1, 2015 B0452-09R15 Reaffirmation
April 10, 2002 B0452-93R98E01 Reaffirmation