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Tantalum Rod
Available Configurations
Properties common to all products in this list
| Diameter | Length | Temper ⓘ |
|---|---|---|
| 1mm to 100mm | 10mm to 1000mm | As drawn Annealed Unannealed |
Need custom configurations? Please contact us.
Key Features
Tantalum Rod provides 99.9% purity tantalum in a solid cylindrical form, combining exceptional corrosion resistance, extreme temperature capability, and biocompatibility for precision-machined components across semiconductor, medical, and high-temperature applications:
Exceptional Corrosion Resistance
Tantalum Rod resists attack from virtually all acids and aggressive chemical environments, making it the material of choice for electrode stock, precision-machined components, and structural parts in the most demanding corrosive service conditions encountered in chemical processing and semiconductor manufacturing.
Extremely High Melting Point (3,017 °C)
With a melting point of 3,017 °C, Tantalum Rod maintains structural integrity in high-temperature vacuum furnace supports, thermowell blanks, and high-temperature mechanical testing specimens where materials with lower melting points would deform or degrade under sustained thermal load.
High Density (16.65 g/cm³) & Mechanical Strength (up to 760 MPa)
Tantalum Rod combines a high density of 16.65 g/cm³ with tensile strength up to 760 MPa in the hard condition, providing the mechanical robustness required for precision pins, fasteners, and structural components that must withstand significant mechanical loads in demanding service environments.
Biocompatibility for Medical Implant Fabrication
Tantalum Rod's biocompatibility and mechanical strength support the fabrication of orthopaedic implant rods and pins, including designs incorporating grooves and surface features engineered to promote bone integration in procedures addressing avascular necrosis, where long-term compatibility with biological tissue is a primary design requirement.
99.9% Purity for Electrochemical & Research Applications
At 99.9% purity, Tantalum Rod serves as feedstock for electrochemical reference electrodes and high-temperature mechanical testing specimens in research, where material consistency and the absence of trace contaminants are essential for reproducible experimental results.
Industrial Applications
Tantalum Rod is used across semiconductor, medical, high-temperature, and research sectors where a precision-machinable, chemically inert, and high-strength cylindrical stock is required:
- ✦ High-Temperature Vacuum Furnace Supports
- Used as vacuum furnace supports and structural components in high-temperature processing equipment, where a melting point of 3,017 °C and dimensional stability under sustained thermal load ensure reliable performance in the extreme temperatures encountered in vacuum sintering, annealing, and crystal growth operations.
- ✦ Thermowell Blanks & Cathode Electrode Stock
- Machined into thermowell blanks and cathode electrodes for semiconductor processing, where Tantalum Rod's corrosion resistance, high-temperature stability, and 99.9% purity provide the chemical inertness and material consistency required in reactive process environments.
- ✦ Orthopaedic Implant Rods & Pins
- Used in the fabrication of orthopaedic implant rods and pins, including components with grooves and surface features engineered to promote bone integration in procedures addressing avascular necrosis, where biocompatibility and tensile strength up to 760 MPa must be combined in a precisely machined implant geometry.
- ✦ Precision Electrodes, Pins & Fasteners
- Machined into electrodes, pins, and fasteners for chemical processing and high-temperature industrial applications, where corrosion resistance across virtually all acid environments and high mechanical strength ensure long service life in components subject to combined chemical and mechanical loading.
- ✦ Electrochemical Reference Electrodes & Research Specimens
- Serves as feedstock for electrochemical reference electrodes and high-temperature mechanical testing specimens in research, where 99.9% purity and consistent cylindrical geometry provide a reproducible, contaminant-free platform for electrochemical studies and materials characterisation programmes.
Synonyms
Material Properties
| Element | Value |
|---|---|
| Atomic number | 73 |
| Crystal structure | Body centred cubic |
| Electronic structure | Xe 4f¹⁴ 5d³ 6s² |
| Valences shown | 2,3,4,5 |
| Atomic weight( amu ) | 180.9479 |
| Thermal neutron absorption cross-section( Barns ) | 22 |
| Photo-electric work function( eV ) | 4.1 |
| Natural isotope distribution( Mass No./% ) | 180/ 0.012 |
| Natural isotope distribution( Mass No./% ) | 181/ 99.988 |
| Atomic radius - Goldschmidt( nm ) | 0.147 |
| Ionisation potential( No./eV ) | 1/ 7.88 |
| Ionisation potential( No./eV ) | 2/ 16.2 |
| Element | Value |
|---|---|
| Material condition | Hard |
| Material condition | Soft |
| Poisson's ratio | 0.342 |
| Poisson's ratio | 0.342 |
| Bulk modulus( GPa ) | 196.3 |
| Bulk modulus( GPa ) | 196.3 |
| Tensile modulus( GPa ) | 185.7 |
| Tensile modulus( GPa ) | 185.7 |
| Hardness - Vickers( kgf mm⁻² ) | 200 |
| Hardness - Vickers( kgf mm⁻² ) | 90 |
| Tensile strength( MPa ) | 760 |
| Tensile strength( MPa ) | 172-207 |
| Yield strength( MPa ) | 705 |
| Yield strength( MPa ) | 310-380 |
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 13.5@20°C |
| Superconductivity critical temperature( K ) | 4.47 |
| Temperature coefficient( K⁻¹ ) | 0.0035@0-100°C |
| Thermal emf against Pt (cold 0C - hot 100C)( mV ) | 0.33 |
| Element | Value |
|---|---|
| Boiling point( C ) | 5425 |
| Density( gcm⁻³ ) | 16.6@20°C |
| Element | Value |
|---|---|
| Melting point( °C ) | 3017 |
| Latent heat of evaporation( J g⁻¹ ) | 4165 |
| Latent heat of fusion( J g⁻¹ ) | 174 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 140@25°C |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 57.5@0-100 |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 6.5@0-100°C |
Tolerances
| Diameter | =<10mm | ±10% |
|---|---|---|
| Diameter | >10mm | ±5% |
| Length | <100mm | ±1mm |
| Length | >=100mm | +5 / -1% |