90-platinum 10-iridium vs. ASTM B631 Class C
Both 90-platinum 10-iridium and ASTM B631 class C are otherwise unclassified metals. There are 9 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.
For each property being compared, the top bar is 90-platinum 10-iridium and the bottom bar is ASTM B631 class C.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 22 | |
| 13 to 14 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 180 to 190 |
| Latent Heat of Fusion, J/g | 100 | |
| 140 to 150 |
| Poisson's Ratio | 0.38 | |
| 0.32 |
| Shear Modulus, GPa | 74 | |
| 66 to 71 |
| Specific Heat Capacity, J/kg-K | 130 | |
| 180 |
| Stiffness to Weight: Axial, points | 5.3 | |
| 7.4 to 7.6 |
| Stiffness to Weight: Bending, points | 9.1 | |
| 14 |
| Thermal Expansion, µm/m-K | 8.6 | |
| 14 |