R05400 Tantalum vs. K94200 Alloy
R05400 tantalum belongs to the otherwise unclassified metals classification, while K94200 alloy belongs to the iron alloys. There are 18 material properties with values for both materials. Properties with values for just one material (7, 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 K94200 alloy.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 140 |
| Elongation at Break, % | 1.1 to 28 | |
| 5.0 to 32 |
| Poisson's Ratio | 0.34 | |
| 0.34 |
| Shear Modulus, GPa | 69 | |
| 54 |
| Tensile Strength: Ultimate (UTS), MPa | 210 to 540 | |
| 500 to 710 |
| Tensile Strength: Yield (Proof), MPa | 140 to 390 | |
| 270 to 650 |
Thermal Properties
| Specific Heat Capacity, J/kg-K | 140 | |
| 500 |
| Thermal Conductivity, W/m-K | 59 | |
| 15 |
| Thermal Expansion, µm/m-K | 6.5 | |
| 5.0 |
Otherwise Unclassified Properties
| Density, g/cm3 | 17 | |
| 8.2 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 5.5 to 53 | |
| 35 to 130 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 50 to 420 | |
| 250 to 1460 |
| Stiffness to Weight: Axial, points | 6.2 | |
| 9.8 |
| Stiffness to Weight: Bending, points | 11 | |
| 21 |
| Strength to Weight: Axial, points | 3.6 to 9.0 | |
| 17 to 24 |
| Strength to Weight: Bending, points | 4.8 to 8.8 | |
| 17 to 22 |
| Thermal Diffusivity, mm2/s | 25 | |
| 3.7 |
| Thermal Shock Resistance, points | 13 to 32 | |
| 49 to 70 |