PdW10 Soft Annealed Alloy (+A) – Durable Contact Material
The palladium-tungsten alloy PdW10, also Pd90W10 or 90Pd10W, is used as contact material (tapping contacts) as well as potentiometer alloy. The material is ductile, corrosion-resistant and abrasion-resistant. It is machinable, conditionally deductible from the gas phase.
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 12.5 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 20.0 °C | 177 GPa | |
Elongation | 20.0 °C | 30 % | |
Hardness, Vickers | 20.0 °C | 100 [-] | |
Poisson's ratio | 23.0 °C | 0.39 [-] | Typical for Palladium |
Shear modulus | 20.0 °C | 62 GPa | |
Tensile strength | 20.0 °C | 510 MPa | |
Yield strength Rp0.2 | 20.0 °C | 170 MPa |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 300.0 °C | 1.08E-5 1/K | |
Melting point | 1553 °C | Typical for Palladium | |
Specific heat capacity | 23.0 °C | 236 - 248 J/(kg·K) | Typical for Palladium |
Thermal conductivity | 23.0 °C | 60 - 76 W/(m·K) | Typical for Palladium |
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical resistivity | 20.0 °C | 3.56E-7 Ω·m |
Chemical properties
| Property | Value |
|---|---|
Palladium | 90 % |
Tungsten | 10 % |
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