Tantalum Ta-Nb30 Fasteners are specialized refractory-metal fasteners manufactured from a tantalum-niobium alloy containing approximately 70% tantalum and 30% niobium. Also known as Ta-30Nb Fasteners, these fasteners are selected for applications requiring the characteristic corrosion resistance and specialized performance of tantalum-based alloys.
We supply Tantalum 30 Niobium Bolts, Ta-30%Nb Screws and Fasteners, Ta-Nb30 studs, nuts, washers, threaded rods and Ta-Nb30 Socket Head Cap Screws in standard and custom configurations. Metric sizes from M2 to M36 Ta-Nb30 Fasteners can be supplied subject to material availability, manufacturing requirements and customer drawings.
What Are Tantalum Ta-Nb30 Fasteners?
Tantalum Ta-Nb30 Fasteners are refractory-metal fasteners made from a nominal 70% tantalum and 30% niobium alloy. They include bolts, screws, studs, nuts, washers, threaded rods and socket head cap screws. Ta-Nb30 fasteners are used for specialized chemical, high-temperature and corrosion-resistant applications and can be manufactured in metric and custom sizes according to drawings and agreed material specifications.
Table of Contents
- ➤ What Are Tantalum Ta-Nb30 Fasteners?
- ➤ What Is Ta-Nb30 Alloy?
- ➤ Tantalum Ta-Nb30 Fasteners Specifications
- ➤ Types of Tantalum Ta-Nb30 Fasteners
- ➤ Chemical Composition of Tantalum Ta-Nb30
- ➤ Mechanical Properties of Ta-Nb30 Fasteners
- ➤ Ta-Nb30 Fasteners Weight Chart
- ➤ Metric M2 to M36 Ta-Nb30 Fasteners
- ➤ Equivalent Grades of Tantalum Ta-Nb30
- ➤ Applications of Tantalum Ta-Nb30 Fasteners
- ➤ Why Choose Our Ta-30Nb Fasteners?
- ➤ Tantalum Ta-Nb30 Fasteners Supplier in India
What Is Ta-Nb30 Alloy?
Ta-Nb30, also written as Ta-30Nb or TaNb30, is a tantalum-niobium alloy with a nominal composition of approximately 70% tantalum and 30% niobium. The alloy belongs to the refractory-metal family and is considered for demanding engineering applications where tantalum-based material performance is required.
The 30% niobium designation is particularly important when ordering because Ta-Nb30 should not be confused with other tantalum alloys such as Ta-2.5W, Ta-10W or Ta-40Nb.
For comparison, ASTM B365 identifies UNS R05240 as a 60% tantalum/40% niobium alloy, while R05252 is Ta-2.5W and R05255 is Ta-10W.
Tantalum Ta-Nb30 Fasteners Specifications
| Specification | Details |
|---|---|
| Product Name | Tantalum Ta-Nb30 Fasteners |
| Alloy | Tantalum-Niobium |
| Nominal Composition | 70% Ta / 30% Nb |
| Common Designations | Ta-Nb30, Ta-30Nb, TaNb30 |
| Material Type | Refractory Metal Alloy |
| Fastener Types | Bolts, screws, studs, nuts, washers, threaded rods |
| Socket Head Type | Ta-Nb30 Socket Head Cap Screws |
| Size Range | M2 to M36; custom sizes on request |
| Thread Types | Metric, UNC, UNF and custom |
| Head Styles | Hex, socket head, countersunk and custom |
| Manufacturing | Machined / formed as applicable |
| Surface | As manufactured / polished / specified finish |
| Material Documentation | Available as agreed |
| Inspection | Dimensional and material verification as required |
| Application | Chemical, specialty engineering and refractory-metal applications |
Types of Tantalum Ta-Nb30 Fasteners
We can supply different fastener configurations according to component design, installation requirements and application.
➤ Ta-Nb30 Bolts
Tantalum 30 Niobium Bolts are available in different head styles, diameters and lengths. Hex bolts can be used where conventional wrench installation is required.
➤ Ta-Nb30 Screws
Ta-Nb30 screws can be manufactured with different drive and head configurations for equipment assemblies and compact installations.
➤ Ta-Nb30 Socket Head Cap Screws
Tantalum Ta-Nb30 Socket Head Cap Screws feature an internal hexagonal drive and compact cylindrical head. They are suitable for assemblies where installation space around the fastener is limited.
➤ Ta-Nb30 Stud Bolts
Refractory Ta-30Nb Bolts and Studs can be manufactured as single-end or double-end studs according to the required thread length and assembly configuration.
➤ Ta-Nb30 Nuts and Washers
Matching nuts and washers can be supplied for complete fastening assemblies, subject to dimensional and material requirements.
➤ Ta-Nb30 Threaded Rods
Ta-Nb30 threaded rods can be supplied in specified lengths and thread forms for applications requiring continuous threaded engagement.
Chemical Composition of Tantalum Ta-Nb30
The nominal composition of Ta-Nb30 is approximately:
| Element | Nominal Composition |
|---|---|
| Tantalum (Ta) | 70% |
| Niobium (Nb) | 30% |
| Other Elements | Controlled residuals |
Mechanical Properties of Ta-Nb30 Fasteners
| Mechanical Property | Typical / Reference Information |
|---|---|
| Tensile Strength | Depends on material condition and manufacturing route |
| Yield Strength | Depends on material condition and fastener size |
| Elongation | Depends on material condition and test method |
| Hardness | Condition-dependent |
| Density | Approximately 16.6–16.7 g/cm³ as a reference for Ta-Nb alloy material |
| Material Condition | As specified / supplied condition |
| Testing | Tensile and other tests can be specified by order |
Ta-Nb30 Fasteners Weight Chart
| Diameter | Approx. Weight per 100 mm |
|---|---|
| 2 mm | 5.23 g |
| 3 mm | 11.77 g |
| 4 mm | 20.92 g |
| 5 mm | 32.69 g |
| 6 mm | 47.08 g |
| 8 mm | 83.69 g |
| 10 mm | 130.77 g |
| 12 mm | 188.31 g |
| 16 mm | 334.77 g |
| 20 mm | 523.08 g |
| 24 mm | 753.23 g |
| 30 mm | 1.177 kg |
| 36 mm | 1.695 kg |
Metric M2 to M36 Ta-Nb30 Fasteners
We can review requirements for Metric M2 to M36 Ta-Nb30 Fasteners, including:
- M2 Ta-Nb30 Fasteners
- M3 Ta-Nb30 Fasteners
- M4 Ta-Nb30 Fasteners
- M5 Ta-Nb30 Fasteners
- M6 Ta-Nb30 Fasteners
- M8 Ta-Nb30 Fasteners
- M10 Ta-Nb30 Fasteners
- M12 Ta-Nb30 Fasteners
- M16 Ta-Nb30 Fasteners
- M20 Ta-Nb30 Fasteners
- M24 Ta-Nb30 Fasteners
- M30 Ta-Nb30 Fasteners
- M36 Ta-Nb30 Fasteners
Custom diameters, lengths, thread pitches and head configurations can also be evaluated against customer drawings.
Equivalent Grades of Tantalum Ta-Nb30
| Material / Designation | Approximate Composition | Relationship to Ta-Nb30 |
|---|---|---|
| Ta-Nb30 / Ta-30Nb | 70% Ta / 30% Nb | Target alloy |
| UNS R05240 | 60% Ta / 40% Nb | Different Ta-Nb alloy; not equivalent |
| UNS R05252 | 97.5% Ta / 2.5% W | Different tantalum-tungsten alloy |
| UNS R05255 | 90% Ta / 10% W | Different tantalum-tungsten alloy |
| UNS R05200 | Unalloyed tantalum | Different material |
| UNS R05400 | Unalloyed tantalum | Different material |
Applications of Tantalum Ta-Nb30 Fasteners
Why Choose Our Ta-30Nb Fasteners?
- Specialized Material Sourcing: Ta-Nb30 is a specialized refractory alloy. We review the required chemistry and product configuration before confirming supply.
- Custom Manufacturing: We can evaluate Ta-30Nb Bolts, Studs, Screws, Socket Head Cap Screws, Nuts, Washers and Threaded Rods according to drawings and dimensional requirements.
- Metric and Custom Sizes: Requirements from M2 to M36 can be considered, along with custom lengths, thread pitches, head styles and non-standard dimensions.
- Material Documentation: Material certificates and inspection documentation can be provided according to the agreed purchase requirement.
- International Supply: We support international enquiries as a Ta-30Nb Alloy Bolts Supplier in India and Tantalum Ta-Nb30 Fasteners Exporter to USA, along with supply enquiries from other international markets.
Tantalum Ta-Nb30 Fasteners Supplier in India
We supply Tantalum Ta-Nb30 Fasteners for specialized industrial requirements, including bolts, screws, studs, nuts, washers, threaded rods and socket head cap screws.
When requesting a quotation, provide the fastener type, diameter, length, thread specification, quantity, drawing, required alloy chemistry and certification requirements. This allows us to review the requirement accurately and offer the appropriate Ta-Nb30 material and configuration.
For applications where a customer specifically requires an ASTM material standard, the exact ASTM grade should be stated rather than assuming that ASTM B365 automatically covers Ta-Nb30.
Contact us for Ta-Nb30 fasteners in standard or custom dimensions and discuss your refractory-alloy fastening requirement with our team.

