ASTM-B477 Standard Specification for Gold-Silver-Nickel Electrical Contact Alloy

ASTM-B477 - 1997 R17 EDITION - CURRENT
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This specification covers gold-silver-nickel alloy tubing, rod, wire, strip, and sheet material for sliding electrical contacts. Raw materials shall be of such quality and purity that the finished product will have the properties and characteristics prescribed in this specification. The material shall be finished by cold working, heat treating, annealing, turning, grinding, or pickling as are required to produce the prescribed properties. Material produced shall meet the chemical composition requirements. Mechanical properties such as tensile strength, elongation, Knoop hardness, microhardness, as well as the electrical contact shall conform to the prescribed specification.

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Scope

1.1 This specification covers 75 % gold-22 % silver-3 % nickel alloy tubing, rod, wire, strip, and sheet material for sliding 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 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 Safety Data Sheet (SDS) 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 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.

Keywords

contacts; electrical contact alloy; gold alloy;; ICS Number Code 77.120.99 (Other non-ferrous metals and their alloys)

To find similar documents by ASTM Volume:

02.04 (Nonferrous Metals--Nickel, Cobalt, Lead, Tin, Zinc, Cadmium, Precious, Reactive, Refractory Metals and Alloys; Materials for Thermostats, Electrical Heating and Resistance Contacts, and Connectors)

To find similar documents by classification:

77.120.99 (Other non-ferrous metals and their alloys)

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Document Number

ASTM-B477-97(2017)

Revision Level

1997 R17 EDITION

Status

Current

Modification Type

Reapproval

Publication Date

April 15, 2017

Document Type

Specification

Page Count

3 pages

Committee Number

B02.05