C70260 Copper vs. R05400 Tantalum
C70260 copper belongs to the copper alloys classification, while R05400 tantalum belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is C70260 copper and the bottom bar is R05400 tantalum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 190 |
| Elongation at Break, % | 9.5 to 19 | |
| 1.1 to 28 |
| Poisson's Ratio | 0.34 | |
| 0.34 |
| Shear Modulus, GPa | 44 | |
| 69 |
| Tensile Strength: Ultimate (UTS), MPa | 520 to 760 | |
| 210 to 540 |
| Tensile Strength: Yield (Proof), MPa | 410 to 650 | |
| 140 to 390 |
Thermal Properties
| Latent Heat of Fusion, J/g | 220 | |
| 140 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 140 |
| Thermal Conductivity, W/m-K | 160 | |
| 59 |
| Thermal Expansion, µm/m-K | 17 | |
| 6.5 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.9 | |
| 17 |
| Embodied Water, L/kg | 310 | |
| 650 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 46 to 140 | |
| 5.5 to 53 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 710 to 1810 | |
| 50 to 420 |
| Stiffness to Weight: Axial, points | 7.3 | |
| 6.2 |
| Stiffness to Weight: Bending, points | 18 | |
| 11 |
| Strength to Weight: Axial, points | 16 to 24 | |
| 3.6 to 9.0 |
| Strength to Weight: Bending, points | 16 to 21 | |
| 4.8 to 8.8 |
| Thermal Diffusivity, mm2/s | 45 | |
| 25 |
| Thermal Shock Resistance, points | 18 to 27 | |
| 13 to 32 |
Alloy Composition
| Carbon (C), % | 0 | |
| 0 to 0.010 |
| Copper (Cu), % | 95.8 to 98.8 | |
| 0 |
| Hydrogen (H), % | 0 | |
| 0 to 0.0015 |
| Iron (Fe), % | 0 | |
| 0 to 0.010 |
| Molybdenum (Mo), % | 0 | |
| 0 to 0.020 |
| Nickel (Ni), % | 1.0 to 3.0 | |
| 0 to 0.010 |
| Niobium (Nb), % | 0 | |
| 0 to 0.1 |
| Nitrogen (N), % | 0 | |
| 0 to 0.010 |
| Oxygen (O), % | 0 | |
| 0 to 0.030 |
| Phosphorus (P), % | 0 to 0.010 | |
| 0 |
| Silicon (Si), % | 0.2 to 0.7 | |
| 0 to 0.0050 |
| Tantalum (Ta), % | 0 | |
| 99.7 to 100 |
| Titanium (Ti), % | 0 | |
| 0 to 0.010 |
| Tungsten (W), % | 0 | |
| 0 to 0.050 |
| Residuals, % | 0 to 0.5 | |
| 0 |