R05200 Tantalum vs. R05255 Alloy
Both R05200 tantalum and R05255 alloy are otherwise unclassified metals. They have a very high 97% of their average alloy composition in common.
For each property being compared, the top bar is R05200 tantalum and the bottom bar is R05255 alloy.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 1.1 to 28 | |
| 20 |
| Poisson's Ratio | 0.34 | |
| 0.34 |
| Shear Modulus, GPa | 69 | |
| 70 |
| Tensile Strength: Ultimate (UTS), MPa | 210 to 540 | |
| 540 |
| Tensile Strength: Yield (Proof), MPa | 140 to 390 | |
| 450 |
Thermal Properties
| Latent Heat of Fusion, J/g | 140 | |
| 140 |
| Specific Heat Capacity, J/kg-K | 140 | |
| 140 |
| Thermal Conductivity, W/m-K | 59 | |
| 59 |
| Thermal Expansion, µm/m-K | 6.5 | |
| 6.6 |
Otherwise Unclassified Properties
| Density, g/cm3 | 17 | |
| 17 |
| Embodied Water, L/kg | 650 | |
| 630 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 5.5 to 53 | |
| 100 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 50 to 420 | |
| 530 |
| Stiffness to Weight: Axial, points | 6.2 | |
| 6.3 |
| Stiffness to Weight: Bending, points | 11 | |
| 11 |
| Strength to Weight: Axial, points | 3.6 to 9.0 | |
| 9.1 |
| Strength to Weight: Bending, points | 4.8 to 8.8 | |
| 8.9 |
| Thermal Diffusivity, mm2/s | 25 | |
| 25 |
| Thermal Shock Resistance, points | 13 to 32 | |
| 31 |
Alloy Composition
| Carbon (C), % | 0 to 0.010 | |
| 0 to 0.010 |
| Hydrogen (H), % | 0 to 0.0015 | |
| 0 to 0.0015 |
| Iron (Fe), % | 0 to 0.010 | |
| 0 to 0.010 |
| Molybdenum (Mo), % | 0 to 0.020 | |
| 0 to 0.020 |
| Nickel (Ni), % | 0 to 0.010 | |
| 0 to 0.010 |
| Niobium (Nb), % | 0 to 0.1 | |
| 0 to 0.5 |
| Nitrogen (N), % | 0 to 0.010 | |
| 0 to 0.010 |
| Oxygen (O), % | 0 to 0.015 | |
| 0 to 0.015 |
| Silicon (Si), % | 0 to 0.0050 | |
| 0 to 0.0050 |
| Tantalum (Ta), % | 99.8 to 100 | |
| 95.9 to 98 |
| Titanium (Ti), % | 0 to 0.010 | |
| 0 to 0.010 |
| Tungsten (W), % | 0 to 0.050 | |
| 2.0 to 3.5 |