90-platinum 10-iridium vs. Commercially Pure Palladium
Both 90-platinum 10-iridium and commercially pure palladium are otherwise unclassified metals. There are 15 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.
For each property being compared, the top bar is 90-platinum 10-iridium and the bottom bar is commercially pure palladium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 120 |
| Elongation at Break, % | 5.5 to 34 | |
| 1.1 to 11 |
| Poisson's Ratio | 0.38 | |
| 0.39 |
| Shear Modulus, GPa | 74 | |
| 43 |
| Shear Strength, MPa | 220 to 320 | |
| 120 to 200 |
| Tensile Strength: Ultimate (UTS), MPa | 330 to 550 | |
| 200 to 380 |
Thermal Properties
| Latent Heat of Fusion, J/g | 100 | |
| 160 |
| Specific Heat Capacity, J/kg-K | 130 | |
| 240 |
| Thermal Expansion, µm/m-K | 8.6 | |
| 12 |
Otherwise Unclassified Properties
| Density, g/cm3 | 22 | |
| 12 |
Common Calculations
| Stiffness to Weight: Axial, points | 5.3 | |
| 5.6 |
| Stiffness to Weight: Bending, points | 9.1 | |
| 14 |
| Strength to Weight: Axial, points | 4.2 to 7.1 | |
| 4.5 to 8.8 |
| Strength to Weight: Bending, points | 4.9 to 6.9 | |
| 6.2 to 9.7 |
| Thermal Shock Resistance, points | 13 to 22 | |
| 9.8 to 19 |
Alloy Composition
| Iridium (Ir), % | 9.5 to 10.5 | |
| 0 |
| Palladium (Pd), % | 0 | |
| 99.8 to 100 |
| Platinum (Pt), % | 89.3 to 90.5 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.2 |