ASTM F 288 : 1996 : R2014

Name: ASTM F 288 : 1996 : R2014
Brand: ASTM
Price: 122.77 AUD

Superseded

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Standard Specification for Tungsten Wire for Electron Devices and Lamps

Available format(s)

Hardcopy , PDF

Superseded date

08-02-2024

Language(s)

English

Published date

01-06-2014

Publisher

American Society for Testing and Materials

CONTAINED IN VOL. 10.04, 2015 Defines three types of drawn wire for fabrication into parts for electron tubes, lamps, and other devices: and one type of rod for metal-to-glass sealing.

1.1This 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):

1.1.1Type 1A—Commercially pure nonsag wire (Note 2 and Note 3).

1.1.2Type 1B—Commercially pure rod suitable for metal-to-glass sealing.

1.1.3Type 2A—Thoriated filament wire containing 1 % thoria.

1.1.4Type 2B—Thoriated filament wire containing 2 % thoria.

1.2The 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.

1.3Types 1A and 1B are designated as UNS R07005. Type 2A is designated as UNS R07911. Type 2B is designated as UNS R07912.

1.4The 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.

Committee	F 01
DocumentType	Standard
Pages	5
ProductNote	Reconfirmed 2014
PublisherName	American Society for Testing and Materials
Status	Superseded
SupersededBy	ASTM F 288 : 1996 : R2019
Supersedes	ASTM F 288 : 1996 : R2009

MIL-STD-129 Revision R:2014	Military Marking for Shipment and Storage
ASTM F 219 : 1996	Standard Test Methods of Testing Fine Round and Flat Wire for Electron Devices and Lamps
MIL-STD-105 Revision E:1989	SAMPLING PROCEDURES AND TABLES FOR INSPECTION BY ATTRIBUTES