TECHNICAL LIBRARY · ASTM PROCUREMENT REFERENCE
ASTM F73-96(2025) — Tungsten–Rhenium Alloy Wire
Procurement reference for UNS R07031 tungsten–rhenium alloy wire used in electron devices and lamps.
Edition control: Active; ASTM F73-96 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.
Scope in Procurement
ASTM F73-96(2025) covers tungsten–rhenium alloy wire identified as UNS R07031 for electron-device and lamp applications.
Within the standard, wire is a spooled or coiled product within the defined small-diameter scope, with chemistry, finish, strength, ductility, visual and dimensional controls.
The reference is not a general WRe rod, plate, structural-part or universal thermocouple specification. Commercial WRe3, WRe5, WRe25 or WRe26 descriptions are not treated as automatic ASTM F73 equivalents.
| Material designation | UNS R07031 tungsten–rhenium alloy |
| Product form | Fine wire supplied spooled or coiled |
| Application context | Electron devices and lamps |
| Scope boundary | Does not govern all WRe compositions, rods, parts or thermocouple products |
Where This Standard Fits
- Electron-device and lamp wire inquiries
- Fine WRe wire with an explicit UNS designation
- Finish, tensile-strength, ductility and dimensional reporting
- Separating the ASTM wire route from commercial WRe variants
Ordering and Document Controls
- Exact ASTM edition and UNS designation
- Rhenium content and chemical composition stated in the certificate
- Wire diameter, spool or coil format and quantity
- Required finish, surface and dimensional tolerances
- Mechanical and ductility test evidence
- Application, inspection documents and destination
Related MNK Technical Pages
Official Publication and Access Policy
Official record: ASTM F73-96(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.
Send Your Standards-Based Inquiry
Send the required material, grade, product form, drawing, dimensions, quantity, governing standard, inspection route and delivery destination. MNK-G.S.A will review the specification and coordinate a sourcing response.
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Technical Sources & Revision
Source: ASTM International. ASTM F73-96(2025)
Document / edition: ASTM F73-96(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.