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This specification covers tungsten-rhenium alloy wire suitable for use in electron devices and lamps. The material is known as UNS R07031. This wire shall conform to the requirements as to chemical composition prescribed. The wire shall be furnished in the following finishes: Finish 1; Finish 2; Finish 3; Finish 4; and Finish 5. The following test methods shall be performed to conform with the specified requirements: chemical analysis; tensile strength; ductility; visual inspection; and dimensional measurements.
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.
1.3 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
F205 Test Method for Measuring Diameter of Fine Wire by Weighing
F219 Test Methods of Testing Fine Round and Flat Wire for Electron Devices and Lamps
ICS Number Code 29.060.10 (Wires)
UNSPSC Code 32141000(Electron Tubes); 26121500(Electrical wire)
ASTM F73-96(2013), Standard Specification for Tungsten-Rhenium Alloy Wire for Electron Devices and Lamps, ASTM International, West Conshohocken, PA, 2013, www.astm.orgBack to Top