Platinum-Rhodium (Pt-10Rh) vs Pure Platinum (Pt 99.95%)
Property comparison of Platinum-Rhodium (Pt-10Rh) and Pure Platinum (Pt 99.95%), both precious metal.
| Property | Platinum-Rhodium (Pt-10Rh) | Pure Platinum (Pt 99.95%) | Difference |
|---|---|---|---|
| Density | 19,970 kg/m³ | 21,450 kg/m³ | +7% |
| Brinell hardness | 90 HB | 60 HB | -33% |
| Thermal conductivity | 38 W/m·K | 72 W/m·K | +89% |
| Coefficient of thermal expansion | 0.000009 1/K | 0.000009 1/K | +2% |
| Melting point | 1,843 °C | 1,769 °C | -4% |
Difference is Pure Platinum (Pt 99.95%) relative to Platinum-Rhodium (Pt-10Rh). Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
- grade
- Pt-10Rh Type S thermocouple
- standard
- Goodfellow / AZoM Article ID 2273
- heat treatment
- as-drawn
- grade
- commercially pure
- standard
- ESPI Metals technical data / Johnson Matthey PMR 1966
- heat treatment
- annealed 700C
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