85-platinum 15-iridium vs. 60Pd-40Ag Alloy
Both 85-platinum 15-iridium and 60Pd-40Ag alloy are otherwise unclassified metals. There are 19 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is 85-platinum 15-iridium and the bottom bar is 60Pd-40Ag alloy.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 220 | |
| 100 |
| Elongation at Break, % | 5.5 to 34 | |
| 1.1 to 28 |
| Poisson's Ratio | 0.38 | |
| 0.38 |
| Shear Modulus, GPa | 81 | |
| 37 |
| Shear Strength, MPa | 370 to 420 | |
| 220 to 350 |
| Tensile Strength: Ultimate (UTS), MPa | 560 to 730 | |
| 340 to 720 |
Thermal Properties
| Latent Heat of Fusion, J/g | 110 | |
| 140 |
| Melting Completion (Liquidus), °C | 1820 | |
| 1360 |
| Melting Onset (Solidus), °C | 1790 | |
| 1310 |
| Specific Heat Capacity, J/kg-K | 130 | |
| 240 |
| Thermal Expansion, µm/m-K | 8.4 | |
| 15 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 6.2 | |
| 4.1 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.6 | |
| 3.2 |
Otherwise Unclassified Properties
| Density, g/cm3 | 22 | |
| 11 |
Common Calculations
| Stiffness to Weight: Axial, points | 5.7 | |
| 4.9 |
| Stiffness to Weight: Bending, points | 9.3 | |
| 14 |
| Strength to Weight: Axial, points | 7.1 to 9.3 | |
| 8.4 to 18 |
| Strength to Weight: Bending, points | 6.9 to 8.3 | |
| 9.6 to 16 |
| Thermal Shock Resistance, points | 21 to 28 | |
| 16 to 34 |
Alloy Composition
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| Copper (Cu), % | 0 | |
| 0 to 0.1 |
| Iridium (Ir), % | 14.5 to 15.5 | |
| 0 |
| Palladium (Pd), % | 0 | |
| 59.5 to 60.9 |
| Platinum (Pt), % | 84.3 to 85.5 | |
| 0 |
| Silver (Ag), % | 0 | |
| 39.1 to 40.5 |
| Residuals, % | 0 to 0.2 | |
| 0 to 0.3 |