PtW10 Soft-Annealed Platinum‑Tungsten Alloy (+A) – Premium Contact Material
The platinum-tungsten alloy PtW10, also Pt90W10 or 90Pt10W, is used as contact material.
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 21.3 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 20.0 °C | 250 GPa | |
Elongation | 20.0 °C | 23 % | |
Hardness, Vickers | 20.0 °C | 250 [-] | |
Poisson's ratio | 23.0 °C | 0.39 [-] | Typical for Platinum |
Shear modulus | 20.0 °C | 89 GPa | |
Tensile strength | 20.0 °C | 920 MPa |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 300.0 °C | 7.9E-6 1/K | |
Melting point | 1769 °C | Typical for Platinum | |
Specific heat capacity | 23.0 °C | 136 J/(kg·K) | Typical for Platinum |
Thermal conductivity | 23.0 °C | 69 - 73 W/(m·K) | Typical for Platinum |
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical resistivity | 20.0 °C | 8.1E-7 Ω·m |
Chemical properties
| Property | Value |
|---|---|
Platinum | 90 % |
Tungsten | 10 % |
PtW10 Alloy: Comprehensive Material Profile & Performance Metrics
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