R05400 Tantalum vs. ASTM A514 Steel
R05400 tantalum belongs to the otherwise unclassified metals classification, while ASTM A514 steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.
For each property being compared, the top bar is R05400 tantalum and the bottom bar is ASTM A514 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 1.1 to 28 | |
| 18 to 21 |
| Poisson's Ratio | 0.34 | |
| 0.29 |
| Shear Modulus, GPa | 69 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 210 to 540 | |
| 790 to 830 |
| Tensile Strength: Yield (Proof), MPa | 140 to 390 | |
| 690 to 770 |
Thermal Properties
| Latent Heat of Fusion, J/g | 140 | |
| 250 to 260 |
| Specific Heat Capacity, J/kg-K | 140 | |
| 470 |
| Thermal Conductivity, W/m-K | 59 | |
| 37 to 51 |
| Thermal Expansion, µm/m-K | 6.5 | |
| 13 |
Otherwise Unclassified Properties
| Density, g/cm3 | 17 | |
| 7.8 to 7.9 |
| Embodied Water, L/kg | 650 | |
| 48 to 57 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 5.5 to 53 | |
| 140 to 170 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 50 to 420 | |
| 1280 to 1590 |
| Stiffness to Weight: Axial, points | 6.2 | |
| 13 |
| Stiffness to Weight: Bending, points | 11 | |
| 24 |
| Strength to Weight: Axial, points | 3.6 to 9.0 | |
| 28 to 29 |
| Strength to Weight: Bending, points | 4.8 to 8.8 | |
| 24 to 25 |
| Thermal Diffusivity, mm2/s | 25 | |
| 10 to 14 |
| Thermal Shock Resistance, points | 13 to 32 | |
| 23 to 24 |