ASTM F288-96(2014)
Standard Specification for Tungsten Wire for Electron Devices and Lamps
- Standard No.
- ASTM F288-96(2014)
- Release Date
- 1996
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM F288-96(2019)
- Latest
- ASTM F288-96(2019)
- Scope
1.1 This specification covers three types of drawn wire suitable for fabrication into parts for electron tubes, lamps, and other devices; and one type of rod for metal-to-glass sealing (grid wire is excepted):
1.1.1 Type 1A—Commercially pure nonsag wire (Note 2 and Note 3).
1.1.2 Type 1B—Commercially pure rod suitable for metal-to-glass sealing.
1.1.3 Type 2A—Thoriated filament wire containing 18201;% thoria.
1.1.4 Type 2B—Thoriated filament wire containing 28201;% thoria.
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 Types 1A and 1B are designated as UNS R07005. Type 2A is designated as UNS R07911. Type 2B is designated as UNS R07912.
1.4 The following precautionary caveat pertains only to the Chemical Analysis, Section 12 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 establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Note 1: A dimensional measurement method for testing nonsag tungsten wire above 0.030 in. (0.76 mm) in diameter is provided in Test Method F269.
Note 2: Acceptance of nonsag wire characteristics for particular applications of size shall be by agreement between producer and consumer based on either a flashed microstructure as shown by photomicrographs, or on dimensional measurement limits determined in accordance with Test Method F269.
ASTM F288-96(2014) Referenced Document
- ASTM F16 Standard Test Methods for Measuring Diameter or Thickness of Wire and Ribbon for Electronic Devices and Lamps*， 2006-02-01 Update
- ASTM F204 Standard Test Method for Surface Flaws in Tungsten Seal Rod and Wire*， 2018-03-01 Update
- ASTM F205 Standard Test Method for Measuring Diameter of Fine Wire by Weighing*， 2020-05-01 Update
- ASTM F219 Standard Test Methods of Testing Fine Round and Flat Wire for Electron Devices and Lamps*， 2018-03-01 Update
- ASTM F269 Standard Test Method for Sag of Tungsten Wire*， 2019-04-01 Update
ASTM F288-96(2014) history
- 2019 ASTM F288-96(2019) Standard Specification for Tungsten Wire for Electron Devices and Lamps
- 1996 ASTM F288-96(2014) Standard Specification for Tungsten Wire for Electron Devices and Lamps
- 1996 ASTM F288-96(2009) Standard Specification for Tungsten Wire for Electron Devices and Lamps
- 1996 ASTM F288-96(2002) Standard Specification for Tungsten Wire for Electron Devices and Lamps
- 1996 ASTM F288-96 Standard Specification for Tungsten Wire for Electron Devices and Lamps
