Hafnium

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Description

Hafnium's physical and chemical properties closely resemble those of zirconium, which is the reason why it was discovered very late in history compared to the other elements. The combination of these properties render hafnium useless for many applications common to other metals. However, one characteristic stands out from most other elements, which is hafnium's unrivalled ability to absorb neutrons. This property makes hafnium one of the best choices for the construction of control bars to be used in nuclear reactors in order to keep them in safe operation.

This material data has been provided by Matmatch.

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

PropertyTemperatureValue

Density

20.0 °C

13.1 g/cm³

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Mechanical

PropertyTemperatureValue

Elastic modulus

20.0 °C

141 GPa

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Hardness, Brinell

20.0 °C

1700 [-]

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Poisson's ratio

20.0 °C

0.26 [-]

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Tensile strength

20.0 °C

745 MPa

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Thermal

PropertyTemperatureValue

Melting point

2227 °C

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Specific heat capacity

20.0 °C

146 J/(kg·K)

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Thermal conductivity

20.0 °C

23 W/(m·K)

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Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

3.2E-7 Ω·m

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