Tantalum Ta-Nb20 Fasteners, also known as Ta-20Nb Fasteners, are specialty tantalum-niobium alloy fastening components containing approximately 20% niobium, with tantalum forming the balance. These fasteners are selected for applications requiring corrosion resistance and the specialized properties of tantalum-niobium alloys.
We supply Tantalum Niobium 20% Alloy Fasteners in different sizes, configurations and thread forms. Our range includes Tantalum 20 Niobium Bolts, Ta-20%Nb Screws, nuts, studs, threaded rods, washers and customized fasteners for specialized industrial applications.
The tantalum-rich composition makes Ta-20Nb relevant to chemical processing and other corrosive-service applications where material compatibility is an important consideration. We can supply components according to customer drawings, dimensions, thread requirements and applicable material specifications.
What Are Tantalum Ta-Nb20 Fasteners?
Tantalum Ta-Nb20 Fasteners are specialty fasteners manufactured from a tantalum-niobium alloy containing approximately 20% niobium and tantalum as the balance. Also called Ta-20Nb Fasteners, they are used in specialized corrosive-service applications, including chemical processing equipment, process assemblies, heat exchangers and other industrial systems requiring tantalum-niobium alloy components.
Table of Contents
- ➤ What Are Tantalum Ta-Nb20 Fasteners?
- ➤ Tantalum Ta-Nb20 Fasteners Specifications
- ➤ Types of Tantalum Ta-Nb20 Fasteners
- ➤ Chemical Composition of Tantalum Ta-Nb20 Fasteners
- ➤ Mechanical Properties of Ta-20Nb Fasteners
- ➤ Tantalum Ta-Nb20 Fasteners Weight Chart
- ➤ Equivalent Grades of Tantalum Ta-Nb20
- ➤ Why Choose Tantalum Ta-Nb20 Fasteners?
- ➤ Applications of Tantalum Ta-Nb20 Fasteners
- ➤ Tantalum Ta-Nb20 Fasteners Manufacturer & Supplier in India
- ➤ Tantalum Niobium 20% Fasteners Stockist
- ➤ Tantalum Ta-Nb20 Fasteners Exporter to USA
Tantalum Ta-Nb20 Fasteners Specifications
| Specification | Details |
|---|---|
| Product Name | Tantalum Ta-Nb20 Fasteners |
| Common Designation | Ta-20Nb / Ta20Nb |
| Alloy Family | Tantalum-Niobium Alloy |
| Nominal Niobium | Approximately 20% |
| Tantalum | Balance |
| Product Forms | Bolts, screws, nuts, studs, threaded rods, washers |
| Thread Forms | Metric, UNC, UNF and customized |
| Size | As per drawing or customer requirement |
| Manufacturing | Machined / formed / customized |
| Material Condition | As specified |
| Surface | As manufactured / machined / customized |
| Certification | MTC and inspection documents as required |
| Applications | Chemical processing, corrosive service and specialty equipment |
Types of Tantalum Ta-Nb20 Fasteners
We supply different types of Ta-20%Nb Screws and Fasteners for specialized fastening requirements.
➤ Ta-20Nb Bolts
Ta-20Nb bolts can be supplied in standard or customized head styles and dimensions for specialized industrial assemblies.
➤ Ta-20Nb Screws
Machine screws, socket head screws and other screw configurations can be produced according to required dimensions and thread specifications.
➤ Ta-20Nb Stud Bolts
Stud bolts are suitable for flanged and equipment connections where a threaded fastening arrangement is required.
➤ Ta-20Nb Nuts
Matching Ta-20Nb nuts can be supplied for compatible threaded assemblies.
➤ Ta-20Nb Threaded Rods
Threaded rods can be supplied in specified lengths and thread configurations for custom assemblies.
➤ Ta-20Nb Washers
Washers can be supplied in customized dimensions to complement Ta-20Nb fastening systems.
➤ Customized Ta-20Nb Fasteners
Special bolts, screws, studs and other components can be manufactured or sourced according to engineering drawings.
➤ ASTM B365 Ta-20Nb Fasteners
ASTM B365 is a specification associated with tantalum and tantalum-alloy rod and wire. It should therefore not be presented as a blanket fastener specification for Ta-20Nb components.
Chemical Composition of Tantalum Ta-Nb20 Fasteners
The Ta-20Nb designation represents a nominal tantalum-niobium composition containing approximately 20% niobium and tantalum as the balance.
| Chemical Element | Nominal Composition |
|---|---|
| Tantalum (Ta) | Balance / approximately 80% |
| Niobium (Nb) | Approximately 20% |
| Carbon (C) | Controlled residual |
| Oxygen (O) | Controlled residual |
| Nitrogen (N) | Controlled residual |
| Hydrogen (H) | Controlled residual |
| Iron (Fe) | Controlled residual |
| Titanium (Ti) | Controlled residual |
| Tungsten (W) | Controlled residual |
| Molybdenum (Mo) | Controlled residual |
| Silicon (Si) | Controlled residual |
| Nickel (Ni) | Controlled residual |
The values above describe the nominal alloy composition, not a certified chemistry range. For critical orders, the exact chemical limits should be taken from the agreed material specification and Material Test Certificate.
Mechanical Properties of Ta-20Nb Fasteners
| Mechanical Property | Ta-20Nb Fasteners |
|---|---|
| Tensile Strength | Condition dependent |
| Yield Strength | Condition dependent |
| Elongation | Condition dependent |
| Hardness | Condition dependent |
| Ductility | Condition dependent |
| Corrosion Resistance | Excellent in suitable environments |
| Material Condition | As specified |
| Testing | As required by purchase specification |
Tantalum Ta-Nb20 Fasteners Weight Chart
| Nominal Diameter | Approx. Weight / Metre |
|---|---|
| 5 mm | 0.295 kg |
| 6 mm | 0.425 kg |
| 8 mm | 0.754 kg |
| 10 mm | 1.178 kg |
| 12 mm | 1.696 kg |
| 14 mm | 2.309 kg |
| 16 mm | 3.016 kg |
| 18 mm | 3.817 kg |
| 20 mm | 4.712 kg |
| 22 mm | 5.704 kg |
| 24 mm | 6.786 kg |
| 25 mm | 7.363 kg |
| 30 mm | 10.603 kg |
| 32 mm | 12.084 kg |
| 36 mm | 15.314 kg |
| 40 mm | 18.840 kg |
Formula: Approximate weight per metre = π/4 × diameter² × density.
Actual fastener weights should be determined from the finished component dimensions or verified production weight.
Equivalent Grades of Tantalum Ta-Nb20
| Grade / Designation | Description | Equivalent to Ta-20Nb |
|---|---|---|
| Ta-20Nb | Approximately 80% Ta + 20% Nb | Reference composition |
| Ta20Nb | Alternate designation | Same alloy designation |
| Tantalum-Niobium 20% | Descriptive designation | Same composition description |
| Ta-Nb20 | Short alloy designation | Same composition designation |
| Ta-Nb3 | Approximately 3% Nb tantalum alloy | No |
| Ta-Nb40 | Approximately 40% Nb tantalum alloy | No |
| UNS R05240 | Tantalum-niobium alloy with approximately 40% Nb | No |
| UNS R05200 | Commercially pure tantalum | No |
| UNS R05400 | Commercially pure tantalum | No |
| UNS R05252 | Ta-2.5W alloy | No |
| UNS R05255 | Ta-10W alloy | No |
Why Choose Tantalum Ta-Nb20 Fasteners?
- Corrosion-Resistant Material: The tantalum-rich alloy composition makes Ta-20Nb suitable for selected highly corrosive service environments.
- Defined Tantalum-Niobium Composition: The approximately 20% niobium composition provides a specific alloy chemistry for projects requiring Ta-Nb material rather than commercially pure tantalum.
- Specialty Fastening Applications: Ta-20Nb can be considered for specialized equipment where corrosion resistance and material compatibility are key selection criteria.
- Custom Dimensions: We can supply components according to customer drawings, dimensions, thread specifications and project requirements.
Applications of Tantalum Ta-Nb20 Fasteners
Chemical Processing Plant Ta-20Nb Fasteners are intended for specialized applications where fastening components need to withstand demanding corrosive service.
Typical application areas include:
- Chemical processing plants
- Chemical reactors
- Process vessels
- Heat exchangers
- Corrosive chemical equipment
- Pharmaceutical processing systems
- Specialty piping assemblies
- Laboratory processing equipment
- Corrosion-resistant equipment
- High-purity chemical systems
- Specialized industrial machinery
The suitability of Ta-20Nb must be evaluated against the actual chemical media, concentration, temperature, pressure and operating conditions.
Tantalum Ta-Nb20 Fasteners Manufacturer & Supplier in India
As a Tantalum Ta-Nb20 Fasteners Manufacturer, supplier and stockist, we support requirements for specialty tantalum-niobium fastening components.
Customers looking for a Ta-20Nb Alloy Bolts Supplier in India can provide the required size, quantity, thread specification, drawing and material requirements. We review these details before confirming the available product and supply route.
Our focus is on supplying specialized fasteners according to clearly defined technical requirements rather than treating all tantalum and tantalum-alloy grades as interchangeable.
Tantalum Niobium 20% Fasteners Stockist
We supply Tantalum Niobium 20% Fasteners for industrial and project requirements in standard and customized configurations.
Depending on the product, size and quantity, supply can include bolts, screws, studs, nuts, threaded rods, washers and special components.
Customers can specify:
- Alloy composition
- Fastener dimensions
- Thread type
- Quantity
- Drawing requirements
- Inspection requirements
- Certification
- Packaging
- Delivery destination
Tantalum Ta-Nb20 Fasteners Exporter to USA
We support international requirements for Tantalum Ta-Nb20 Fasteners Exporter to USA applications and can discuss the documentation and packaging requirements associated with export orders.
For USA-bound requirements, customers can provide the applicable engineering specification, drawing, quantity, dimensions and inspection requirements. We can then review the order for material and documentation requirements before dispatch.
Get a Quote for Tantalum Ta-Nb20 Fasteners
Looking for Ta-20Nb Bolts, Screws, Studs, Nuts or Custom Fasteners?
Send us your required dimensions, quantity, thread specification, alloy composition, drawing and applicable standard. We will review your requirement and provide the available supply option.

