At Ananka Fasteners Pvt Ltd, we manufacture and supply fasteners certified to ASTM B365. Standard specification for tantalum and tantalum alloy rod and wire. Exceptional corrosion resistance to acids; used as stock for specialty fasteners, pins, and electrodes in chemical and medical applications.
Standard specification for tantalum and tantalum alloy rod and wire. Exceptional corrosion resistance to acids; used as stock for specialty fasteners, pins, and electrodes in chemical and medical applications.
| Grade / Class | UNS / Designation | Type / Notes |
|---|---|---|
| Type 1 (EB-melted) | R05200 | Unalloyed tantalum, electron-beam melted |
| Type 2 (powder/sintered) | R05400 | Unalloyed tantalum, powder metallurgy |
| Ta-2.5W | R05252 | Tantalum-2.5% tungsten alloy |
| Ta-10W | R05255 | Tantalum-10% tungsten alloy, high strength |
Minimum mechanical requirements per ASTM B365.
| Grade / Class / Condition | Tensile Strength, min | Yield Strength, min | Elongation, min % | Hardness |
|---|---|---|---|---|
| R05200 / R05400 (annealed) | 30 (207) | ~20 (138) | 25 | – |
| R05252 Ta-2.5W (annealed) | ~45 (310) | ~35 (240) | 20 | – |
| R05255 Ta-10W (annealed) | ~90 (620) | ~75 (515) | 15 | – |
| Grade | Key Composition, % |
|---|---|
| R05200/R05400 | Ta 99.8+ min; C 0.010 max, O 0.015 max, N 0.010 max, Nb 0.10 max |
| R05252 | Ta bal, W 2.0-3.5 |
| R05255 | Ta bal, W 9.0-11.0 |
R05200/R05400 unalloyed tantalum; Ta-2.5W / Ta-10W alloys
For the official ASTM International standards catalogue, see the ASTM International standards listing. This external reference is provided for standards identification; the purchaser should verify the current edition applicable to the order.
We supply ASTM B365 fasteners — bolts, screws, studs, nuts and washers as applicable — for energy, petrochemical, marine, structural and general engineering service, in a full range of sizes and finishes.
For technical documentation and quotations, buyers can also review the Ananka Fasteners manufacturing and supply range or contact the team through the fastener enquiry and technical support page.
Ananka Fasteners supplies every lot with full material traceability and third-party testing on request.
Standard specification for tantalum and tantalum alloy rod and wire. Exceptional corrosion resistance to acids; used as stock for specialty fasteners, pins, and electrodes in chemical and medical applications.
Ananka Fasteners supplies Type 1 (EB-melted), Type 2 (powder/sintered), Ta-2.5W, Ta-10W to ASTM B365. See the Grades / Classes Covered table above for full details of each grade.
Minimum tensile strength, yield strength, elongation and hardness requirements vary by grade — see the Mechanical Properties table above for the complete breakdown.
We supply ASTM B365 fasteners — bolts, screws, studs, nuts and washers as applicable — for energy, petrochemical, marine, structural and general engineering service, in a full range of sizes and finishes.
Yes. For a quotation, provide the required fastener type, grade, nominal size, dimensional standard, quantity and any inspection or certificate requirements.
Need a fastener released to ASTM B365 for an industrial project? Send the required fastener type, grade, size, quantity and certification requirements to Ananka Fasteners. Our team can review the requirement and provide technical and commercial information for standard or custom configurations.
Recommended RFQ details: ASTM B365 requirement, material grade, fastener type, nominal size, dimensional standard, quantity, inspection requirements and EN 10204 certificate requirements where applicable.
Data compiled per ASTM B365 and industry references; provided for reference only — confirm against the current edition of the standard and certified mill test reports before design use.
