ASTM B631-93(2004)

    Historical Standard: ASTM B631-93(2004) Standard Specification for Silver-Tungsten Electrical Contact Materials

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    ASTM B631

    1. Scope

    1.1 This specification covers electrical contact components made from silver-tungsten by powder-metallurgical procedures.

    1.2 This specification covers compositions within the silver-tungsten system normally specified by users of contacts.

    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 Data Safety Sheet 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.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    B328 Test Method for Density, Oil Content, and Interconnected Porosity of Sintered Metal Structural Parts and Oil-Impregnated Bearings


    ICS Code

    ICS Number Code 77.120.99 (Other non-ferrous metals and their alloys)

    UNSPSC Code

    UNSPSC Code


    DOI: 10.1520/B0631-93R04

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