ASTM F73

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. Scope

1.1 This specification covers tungsten-rhenium alloy wire suitable for use in electron devices and lamps.The material is known as UNS R07031.

1.2 The term wire as used in this specification applies to all material 0.020 in. (0.51 mm) or less in diameter that is spooled or coiled.

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

2. Referenced Documents

F205 Test Method for Measuring Diameter of Fine Wire by Weighing
F219 Methods of Testing Fine Round and Flat Wire for Electron Devices and Lamp

Index Terms

electron devices; tungsten-rhenium alloy; UNS R; ICS Number Code 29.060.10

Citing ASTM Standards

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