PtIr5 Soft Annealed (A) – High-Performance Platinum‑Iridium Contact Material
The platinum-iridium material PtIr5, also Pt95Ir5 or 95Pt5Ir, is used as contact material.
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 21.5 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 20.0 °C | 190 GPa | |
Elongation | 20.0 °C | 26 % | |
Hardness, Vickers | 20.0 °C | 80 [-] | |
Poisson's ratio | 23.0 °C | 0.39 [-] | Typical for Platinum |
Shear modulus | 23.0 °C | 62 GPa | Typical for Platinum |
Tensile strength | 20.0 °C | 250 MPa | |
Yield strength Rp0.2 | 20.0 °C | 170 MPa |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 23.0 °C | 8.8E-6 - 9.1E-6 1/K | Typical for Platinum |
Melting point | 1769 °C | Typical for Platinum | |
Specific heat capacity | 23.0 °C | 136 J/(kg·K) | Typical for Platinum |
Thermal conductivity | 20.0 °C | 42 W/(m·K) |
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical conductivity | 20.0 °C | 5.60E+6 S/m |
Electrical resistivity | 20.0 °C | 1.79E-7 Ω·m |
Chemical properties
| Property | Value |
|---|---|
Iridium | 5 % |
Platinum | 95 % |
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