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.
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, 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 certificate chemistry
- 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.
MNK-G.S.A | Industrial Procurement & Sourcing | mnkmetals.com | sales@mnkmetals.com