Palladium (Pd) hard

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Description

The silver-white precious metal material palladium (Pd), the most active of the platinum metals, belongs to the light platinum metals (density around 12 g/cm³). Unlike platinum, it dissolves in concentrated nitric acid. Pd is alloyable with the majority of metals and has good catalytic properties. It absorbs around 9.5 times its volume of hydrogen at 1000°C. Application: Palladium is used almost exclusively in the form of alloys. The two largest consumption sectors are electrical engineering / electronics with about 50% and the dental sector with 30%. In addition, Pd is used in exhaust gas catalysts in the form of compounds with platinum and in hydrogen diffusion cells. In the jewelry industry palladium serves as an alloy or alloying component z. For white gold (10% to 20% Pd). Furthermore, Pd is used as an alloying additive for fountain pens, spinnerets. Palladium has now prevailed over gold as exclusively used getter material. This was due to its sufficient resistance to the reactor gas, unlimited miscibility with platinum in the solid state, higher melting point and lower price compared to gold. Pd is also used as a contact material. Pd is ductile, corrosion resistant, but tends to form organic polymers (Brown Powder effect). It is machinable, rollable, separable from the gas phase and electrodepositable.

Related Standards

This material data has been provided by WIAM.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyTemperatureValueComment

Density

23.0 °C

12.16 g/cm³

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Typical for Palladium

Mechanical

PropertyTemperatureValueComment

Elastic modulus

-195.0 °C

126 GPa

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20.0 °C

124 GPa

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250.0 °C

121 GPa

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400.0 °C

119 GPa

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500.0 °C

117 GPa

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600.0 °C

113 GPa

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750.0 °C

98 GPa

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800.0 °C

91 GPa

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Hardness, Vickers

20.0 °C

100 [-]

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Poisson's ratio

23.0 °C

0.39 [-]

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Typical for Palladium

Shear modulus

23.0 °C

42 GPa

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Typical for Palladium

Tensile strength

20.0 °C

325 MPa

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Yield strength

20.0 °C

205 MPa

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

50.0 °C

1.18E-5 1/K

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100.0 °C

1.19E-5 1/K

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200.0 °C

1.21E-5 1/K

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300.0 °C

1.23E-5 1/K

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400.0 °C

1.26E-5 1/K

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500.0 °C

1.28E-5 1/K

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600.0 °C

1.3E-5 1/K

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700.0 °C

1.32E-5 1/K

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800.0 °C

1.34E-5 1/K

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900.0 °C

1.36E-5 1/K

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1000.0 °C

1.39E-5 1/K

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Melting point

1553 °C

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Typical for Palladium

Specific heat capacity

23.0 °C

236 - 248 J/(kg·K)

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Typical for Palladium

Thermal conductivity

-173.0 °C

76 W/(m·K)

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-73.0 °C

75 W/(m·K)

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127.0 °C

75.5 W/(m·K)

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327.0 °C

79 W/(m·K)

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527.0 °C

83 W/(m·K)

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727.0 °C

87 W/(m·K)

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927.0 °C

88.2 W/(m·K)

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1127.0 °C

86.9 W/(m·K)

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1327.0 °C

86 W/(m·K)

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Chemical properties

PropertyValue

Palladium

99.9 %

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