TECHNICAL LIBRARY · ASTM PROCUREMENT REFERENCE
ASTM F288-96(2025) — Tungsten Wire for Electronic Devices
Procurement reference for defined pure and thoriated tungsten wire types and one sealing-rod type used in electronic applications.
Edition control: Active; ASTM F288-96 reapproved in 2025. This original MNK-G.S.A summary does not reproduce or replace the protected ASTM publication. Confirm the current authorised edition and governing order documents before use. Values in the inch-pound system govern; SI conversions are informational only. Grid wire is excluded from this standard.
Scope in Procurement
ASTM F288-96(2025) covers defined drawn tungsten wire types used to make parts for electron tubes, lamps and other devices, plus a specific rod type for metal-to-glass sealing.
The standard distinguishes commercially pure nonsag material and thoriated filament-wire types, with chemistry, mechanical, dimensional, finish, surface and supply-format controls.
It is not a universal specification for every pure-tungsten wire, general engineering rod, welding electrode or finished component. Radioactive-material and destination requirements must be screened where a thoriated type is requested.
| Product context | Defined drawn tungsten wire types and one sealing-rod type |
| Application context | Electron tubes, lamps and related devices |
| Procurement role | Type, chemistry, finish, property and dimensional control |
| Scope boundary | Not a universal route for general tungsten rod, electrodes or arbitrary parts |
Where This Standard Fits
- Nonsag tungsten wire for electronic devices
- Specified thoriated filament-wire inquiries
- Metal-to-glass sealing rod within the defined type
- Surface, straightness, coiling and spooling control
Ordering and Document Controls
- Exact ASTM edition and material type
- UNS designation and chemistry where applicable
- Wire or sealing-rod form and nominal size
- Finish, surface, straightness and spool requirements
- Mechanical, ductility and dimensional evidence
- Destination rules, documentation and delivery requirements
Related MNK Technical Pages
Official Publication and Access Policy
Official record: ASTM F288-96(2025) at ASTM International. Obtain authorised content through the publisher or an authorised standards distributor. Protected clauses, tables, figures and acceptance values are not reproduced here.
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Technical Sources & Revision
Source: ASTM International. ASTM F288-96(2025)
Document / edition: ASTM F288-96(2025)
Source used for: The public ASTM International catalogue record supports the document identity, edition and scope summary on this page. It is used for the stated material or product coverage and the named test or inspection method, where applicable. It does not establish product conformity or replace numerical requirements in the full publication.
Technical source review:
Review scope: the public publisher record and this procurement summary, not a clause-by-clause audit of the full standard. For acceptance, use the governing publication, purchase specification and product or test documentation.