90-platinum 10-iridium vs. Solder Alloy 117
Both 90-platinum 10-iridium and solder alloy 117 are otherwise unclassified metals. There are 14 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.
For each property being compared, the top bar is 90-platinum 10-iridium and the bottom bar is solder alloy 117.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 23 |
| Elongation at Break, % | 5.5 to 34 | |
| 20 |
| Poisson's Ratio | 0.38 | |
| 0.42 |
| Shear Modulus, GPa | 74 | |
| 8.1 |
| Tensile Strength: Ultimate (UTS), MPa | 330 to 550 | |
| 33 |
Thermal Properties
| Latent Heat of Fusion, J/g | 100 | |
| 31 |
| Specific Heat Capacity, J/kg-K | 130 | |
| 150 |
| Thermal Expansion, µm/m-K | 8.6 | |
| 28 |
Otherwise Unclassified Properties
| Density, g/cm3 | 22 | |
| 11 |
Common Calculations
| Stiffness to Weight: Axial, points | 5.3 | |
| 1.2 |
| Stiffness to Weight: Bending, points | 9.1 | |
| 9.0 |
| Strength to Weight: Axial, points | 4.2 to 7.1 | |
| 0.88 |
| Strength to Weight: Bending, points | 4.9 to 6.9 | |
| 2.2 |
| Thermal Shock Resistance, points | 13 to 22 | |
| 3.7 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 0 to 0.0010 |
| Antimony (Sb), % | 0 | |
| 0 to 0.5 |
| Arsenic (As), % | 0 | |
| 0 to 0.030 |
| Bismuth (Bi), % | 0 | |
| 0 to 0.25 |
| Cadmium (Cd), % | 0 | |
| 0 to 0.0050 |
| Copper (Cu), % | 0 | |
| 0 to 0.080 |
| Gold (Au), % | 0 | |
| 0 to 0.050 |
| Indium (In), % | 0 | |
| 0 to 0.1 |
| Iridium (Ir), % | 9.5 to 10.5 | |
| 0 |
| Iron (Fe), % | 0 | |
| 0 to 0.020 |
| Lead (Pb), % | 0 | |
| 78.4 to 80.5 |
| Nickel (Ni), % | 0 | |
| 0 to 0.010 |
| Platinum (Pt), % | 89.3 to 90.5 | |
| 0 |
| Silver (Ag), % | 0 | |
| 0 to 0.1 |
| Tin (Sn), % | 0 | |
| 19.5 to 20.5 |
| Zinc (Zn), % | 0 | |
| 0 to 0.0010 |
| Residuals, % | 0 to 0.2 | |
| 0 |