When selecting a refractory metal to best meet the requirements of your application, the physical properties are of the utmost importance. Below are tables with data containing Tantalum’s typical properties, including chemistry and pertinent specifications. If you require any additional information on Tantalum, please complete our Contact Us form or call us.
For an EFINEA Tantalum data sheet, or any other Refractory Metals & Alloys data sheets, please go to the Data Sheets section in our Technical Library.
Tantalum Typical Physical Properties | ||
|---|---|---|
| Density | g/cm3 | 16.65 |
| Melting Point | °C | 2996 |
| Electrical Conductivity | S/m | 8.0 x 106 |
| Specific Electrial Resistance | (Ωmm2)/m | 0.125 |
| Thermal Conductivity | W(mK) | 57.5 |
| Specific Heat @20°C | J/(gK) | 0.14 |
| Coefficient of Linear Thermal Expansion | m/(mK) | 6.4 x 10-6 |
| Source: Plansee, www.plansee.com | ||
Tantalum Typical Mechanical Properties | ||
|---|---|---|
| Ultimate Tensile Strength* | psi (MPa) | 25,000 (172) |
| Yield Strength min.* | psi (MPa) | 15,000 (103) |
| Elongation min.* | % 1.0" in | 25 |
| Vickers Hardness | MPa | 870-1200 |
| Modulus of Elasticity | ksi (GPa) | 27 (186) |
| *Based on Rod 0.125" to 2.5" Diameter Annealed | Source: ASTM B365, Table 3; Plansee, www.plansee.com | ||
Tantalum Chemistry |
|---|
| Minimum % 99.95 |
Tantalum Specifications |
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|---|---|---|---|
| ASTM B365 (Bar, Wire) | ASTM B708 (Plate, Sheet, Strip) | AMS 7849 | UNS R05200 |
For additional information on specifications of the materials distributed by EFINEA, please visit the websites of the international organizations that develop and publish technical standards: ASTM International and ASM International.
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