Standard Historical Last Updated: May 09, 2012 Track Document
ASTM B692-90(2006)

Standard Specification for 75 % Silver-25 % Graphite Sliding Contact Material

Standard Specification for 75 % Silver-25 % Graphite Sliding Contact Material B0692-90R06 ASTM|B0692-90R06|en-US Standard Specification for 75 % Silver-25 % Graphite Sliding Contact Material Standard new BOS Vol. 02.04 Committee B02
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Abstract

This specification defines the criteria for the chemical composition and other requirements (including physical properties, microstructure, superficial hardness, and specific resistance ) for silver-graphite brushes for sliding electrical contacts. The percentage of silver, graphite, ash in graphite, and total metal impurities are prescribed. The minimum acceptable values for the physical properties such as density, determined by measurement and weight method, and shear strength are given. Typical Rockwell hardness and specific resistance for the material are also specified.

Scope

1.1 This specification defines the criteria for composition and other requirements for brushes with a nominal silver content of 75 weight % with the balance being substantially graphite.

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 become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use.

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Details
Book of Standards Volume: 02.04
Developed by Subcommittee: B02.05
Pages: 2
DOI: 10.1520/B0692-90R06
ICS Code: 77.120.99