ASTM B972-10(2020)e1 - 1.1.2020
 
1. Scope

1.1 This specification covers nickel-coated copper braid and ribbon flat wire intended for electronic application (Explanatory Note 1).

1.2 Two classes of nickel-coated braid and ribbon flat copper wire are covered as follows:

1.2.1 Class A—Annealed temper.

1.2.2 Class H—Hard-drawn.

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 Exceptions—The SI values for density, resistivity, and volume are to be regarded as standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 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.

 
2. Referenced Documents

B258-18

Standard Specification for Standard Nominal Diameters and Cross-Sectional Areas of AWG Sizes of Solid Round Wires Used as Electrical Conductors

B193-20

Standard Test Method for Resistivity of Electrical Conductor Materials

B49-20

Standard Specification for Copper Rod for Electrical Purposes

B1-13(2018)

Standard Specification for Hard-Drawn Copper Wire

B3-13(2018)

Standard Specification for Soft or Annealed Copper Wire

NBS Handbook 100

Copper Wire Tables