Tantalum is a hard, ductile, bluegray transition metal valued for its exceptional corrosion resistance and extremely high melting point. These properties make it ideal for hightemperature applications such as heating elements, heat shields, and crucibles used in vacuum furnaces and other demanding thermal environments.
Tantalum and its alloys play a critical role in aerospace and nuclear technologies, where strength, stability, and reliability are essential. They are also increasingly used in advanced military systems, including highperformance antiarmor components.
Highpurity tantalum is vital to the electronics and semiconductor industries. It is used to produce sputtering targets for PVD processes, forming tantalum thin films that act as diffusion barriers for copper interconnects in integrated circuits. These targets are also used in manufacturing magnetic storage media, inkjet printer heads, flatpanel displays, and other electronic and optoelectronic devices.
Ultrapure tantalum is further employed in Molecular Beam Epitaxy (MBE) equipment, where it is fabricated into crucibles, plates, disks, boats, rods, and other components. Its purity, thermal stability, and corrosion resistance make it indispensable for semiconductor research and device fabrication.
General Properties
| Properties | Value |
| Symbol | Ta |
| CAS Number | 7440-25-7 |
| EINECS Number | 231-135-5 |
| Atomic Number | 73 |
| Atomic Mass | 180.94788 u |
| Density | 16.65 g/cc |
| Melting Point | 3017 °C |
| Boiling Point | 5458 °C |
| Thermal Conductivity | 57.5 W/(m⋅K) |
| Electrical Resistivity | 131 nΩ⋅m (at 20 °C) |
| Electronegativity | Pauling scale: 1.5 |
| Heat of Vaporization | 753 kJ/mol |
| Heat of Fusion | 36.57 kJ/mol |
Product Availability
We provide Tantalum (Ta) tailored for semiconductor and industrial requirements.
| Purity | Up to 99.99% (4N) |
| Forms | Small pellet and rod sizes |
| Package | Vacuum-sealed |
If you require any of this metal, please contact our sales team for details at sales@american-gmg.com.