ASTM B277-95(2006)

    Standard Test Method for Hardness of Electrical Contact Materials

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    1. Scope

    1.1 This test method covers the determination of the hardness of metallic materials used for electrical contacts. Rockwell, Rockwell superficial, Brinell, and microhardness tests are included, along with information on the limitations and use of these tests.

    1.2 The values stated in inch-pound units are to be regarded as the standard. The SI units in parentheses are for information only.

    1.3 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 manufactureer, 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

    E10 Test Method for Brinell Hardness of Metallic Materials

    E18 Test Methods for Rockwell Hardness of Metallic Materials

    E384 Test Method for Knoop and Vickers Hardness of Materials


    ICS Code

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

    UNSPSC Code

    UNSPSC Code 41114611(Hardness testers)


    DOI: 10.1520/B0277-95R06

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