R05200 Tantalum vs. AWS ERNiCu-7
R05200 tantalum belongs to the otherwise unclassified metals classification, while AWS ERNiCu-7 belongs to the nickel alloys. There are 17 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.
For each property being compared, the top bar is R05200 tantalum and the bottom bar is AWS ERNiCu-7.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 160 |
| Elongation at Break, % | 1.1 to 28 | |
| 34 |
| Poisson's Ratio | 0.34 | |
| 0.32 |
| Shear Modulus, GPa | 69 | |
| 61 |
| Tensile Strength: Ultimate (UTS), MPa | 210 to 540 | |
| 550 |
Thermal Properties
| Latent Heat of Fusion, J/g | 140 | |
| 280 |
| Specific Heat Capacity, J/kg-K | 140 | |
| 440 |
| Thermal Conductivity, W/m-K | 59 | |
| 20 |
| Thermal Expansion, µm/m-K | 6.5 | |
| 13 |
Otherwise Unclassified Properties
| Density, g/cm3 | 17 | |
| 8.7 |
| Embodied Water, L/kg | 650 | |
| 250 |
Common Calculations
| Stiffness to Weight: Axial, points | 6.2 | |
| 10 |
| Stiffness to Weight: Bending, points | 11 | |
| 21 |
| Strength to Weight: Axial, points | 3.6 to 9.0 | |
| 18 |
| Strength to Weight: Bending, points | 4.8 to 8.8 | |
| 17 |
| Thermal Diffusivity, mm2/s | 25 | |
| 5.3 |
| Thermal Shock Resistance, points | 13 to 32 | |
| 19 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 0 to 1.3 |
| Carbon (C), % | 0 to 0.010 | |
| 0 to 0.15 |
| Copper (Cu), % | 0 | |
| 18.3 to 36.5 |
| Hydrogen (H), % | 0 to 0.0015 | |
| 0 |
| Iron (Fe), % | 0 to 0.010 | |
| 0 to 2.5 |
| Manganese (Mn), % | 0 | |
| 0 to 4.0 |
| Molybdenum (Mo), % | 0 to 0.020 | |
| 0 |
| Nickel (Ni), % | 0 to 0.010 | |
| 62 to 69 |
| Niobium (Nb), % | 0 to 0.1 | |
| 0 |
| Nitrogen (N), % | 0 to 0.010 | |
| 0 |
| Oxygen (O), % | 0 to 0.015 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 to 0.0050 | |
| 0 to 1.3 |
| Sulfur (S), % | 0 | |
| 0 to 0.015 |
| Tantalum (Ta), % | 99.8 to 100 | |
| 0 |
| Titanium (Ti), % | 0 to 0.010 | |
| 1.5 to 3.0 |
| Tungsten (W), % | 0 to 0.050 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.5 |