ASTM B540 - 97(2012)

    Standard Specification for Palladium Electrical Contact Alloy

    Active Standard ASTM B540 | Developed by Subcommittee: B02.05

    Book of Standards Volume: 02.04


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    ASTM B540

    Abstract

    This specification covers an alloy containing palladium, silver, copper, gold, platinum, and zinc in the form of wire, rod, and strip for electrical contacts. The material shall be finished by such operations: cold working, heat treating, annealing, turning, grinding, and pickling. Material shall meet the requirements of chemical composition as specified. Knoop hardness test and tension test shall be made to conform to the specified requirements. Chemical analysis shall be performed by spectrochemical or wet analysis methods.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    1. Scope

    1.1 This specification covers an alloy containing palladium, silver, copper, gold, platinum, and zinc in the form of wire, rod, and strip for electrical contacts.

    1.2 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 The following safety hazard caveat pertains only to the test methods portion, Section 6 of this specification. 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.

    1.4 It is the responsibility of the user 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.


    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

    B476 Specification for General Requirements for Wrought Precious Metal Electrical Contact Materials

    E8 Test Methods for Tension Testing 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


    DOI: 10.1520/B0540-97R12

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