| |
| Physical Properties | Metric | English | Comments |
|---|
| Density | 16.65 g/cc | 0.6015 lb/in³ |
Vapor Pressure  | 6.298e-9 bar
@Temperature 2351 °C | 0.000004724 torr
@Temperature 4264 °F |
| | 7.488e-9 bar
@Temperature 2365 °C | 0.000005616 torr
@Temperature 4289 °F |
| | 4.019e-8 bar
@Temperature 2487 °C | 0.00003014 torr
@Temperature 4509 °F |
| | 9.82e-8 bar
@Temperature 2566 °C | 0.0000737 torr
@Temperature 4651 °F |
| | 1.72e-7 bar
@Temperature 2615 °C | 0.000129 torr
@Temperature 4739 °F |
| | 2.44e-7 bar
@Temperature 2652 °C | 0.000183 torr
@Temperature 4806 °F |
| | 3.703e-7 bar
@Temperature 2675 °C | 0.0002777 torr
@Temperature 4847 °F |
| |
| Chemical Properties | Metric | English | Comments |
|---|
| Atomic Mass | 180.9479 | 180.9479 |
| Atomic Number | 73 | 73 |
| Thermal Neutron Cross Section | 21.3 barns/atom | 21.3 barns/atom |
| X-ray Absorption Edge | 0.18393 Å | 0.18393 Å |
| | 1.06084 Å | 1.06084 Å |
| | 1.11264 Å | 1.11264 Å |
| | 1.25427 Å | 1.25427 Å |
| Electrode Potential | 4.1 V | 4.1 V |
| Electronegativity | 1.5 | 1.5 |
| Ionic Radius | 0.680 Å | 0.680 Å |
| |
| Mechanical Properties | Metric | English | Comments |
|---|
| Hardness, Brinell | 195 | 195 |
| Hardness, Rockwell A | 56 | 56 |
| Hardness, Rockwell B | 92 | 92 |
| Hardness, Rockwell C | 12 | 12 |
| Hardness, Vickers | 200 | 200 |
| Tensile Strength, Ultimate | 900 MPa | 131000 psi |
| Modulus of Elasticity | 186 GPa | 27000 ksi |
| Poissons Ratio | 0.35 | 0.35 |
| Fatigue Strength | 230 MPa
@# of Cycles 5.00e+7 | 33400 psi
@# of Cycles 5.00e+7 |
| Shear Modulus | 69.0 GPa | 10000 ksi |
| |
| Electrical Properties | Metric | English | Comments |
|---|
| Electrical Resistivity | 0.0000125 ohm-cm | 0.0000125 ohm-cm |
| Magnetic Susceptibility | 9.0e-7 | 9.0e-7 |
| Critical Magnetic Field Strength, Oersted | 823 - 835 | 823 - 835 |
| Critical Superconducting Temperature | 4.43 - 4.51 K | 4.43 - 4.51 K |
| |
| Thermal Properties | Metric | English | Comments |
|---|
| Heat of Fusion | 170 J/g | 73.1 BTU/lb |
| CTE, linear | 6.50 µm/m-°C
@Temperature 20.0 °C | 3.61 µin/in-°F
@Temperature 68.0 °F |
| | 6.60 µm/m-°C
@Temperature 250 °C | 3.67 µin/in-°F
@Temperature 482 °F |
| | 6.70 µm/m-°C
@Temperature 500 °C | 3.72 µin/in-°F
@Temperature 932 °F |
| | 6.96 µm/m-°C
@Temperature 1000 °C | 3.87 µin/in-°F
@Temperature 1830 °F |
| Specific Heat Capacity | 0.153 J/g-°C | 0.0366 BTU/lb-°F |
| Thermal Conductivity | 54.4 W/m-K
@Temperature 20.0 °C | 378 BTU-in/hr-ft²-°F
@Temperature 68.0 °F |
| | 56.1 W/m-K
@Temperature -73.0 °C | 389 BTU-in/hr-ft²-°F
@Temperature -99.4 °F |
| | 59.9 W/m-K
@Temperature 127 °C | 416 BTU-in/hr-ft²-°F
@Temperature 261 °F |
| | 66.6 W/m-K
@Temperature 527 °C | 462 BTU-in/hr-ft²-°F
@Temperature 981 °F |
| | 72.9 W/m-K
@Temperature 927 °C | 506 BTU-in/hr-ft²-°F
@Temperature 1700 °F |
| | 77.0 W/m-K
@Temperature 1327 °C | 534 BTU-in/hr-ft²-°F
@Temperature 2421 °F |
| | 80.8 W/m-K
@Temperature 1727 °C | 561 BTU-in/hr-ft²-°F
@Temperature 3141 °F |
| | 83.7 W/m-K
@Temperature 2127 °C | 581 BTU-in/hr-ft²-°F
@Temperature 3861 °F |
| | 85.8 W/m-K
@Temperature 2527 °C | 595 BTU-in/hr-ft²-°F
@Temperature 4581 °F |
| Melting Point | 2996 °C | 5425 °F |
| Boiling Point | 5458 °C | 9856 °F |
| |
| Optical Properties | Metric | English | Comments |
|---|
| Emissivity (0-1) | 0.49 | 0.49 |
| | 0.20
@Temperature 1460 °C | 0.20
@Temperature 2660 °F |
| |
| Component Elements Properties | Metric | English | Comments |
|---|
| Tantalum, Ta | 100 % | 100 % |
| |
| Descriptive Properties |
|---|
| CAS Number | 7440-22-7 |
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