Ultra High Purity Chromium (UHP Cr) >99.95%

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Description

Chromium is a lightweight blue-silvery white metal. The name chromium comes from the Greek "chroma" and means color.

This material data has been provided by Plansee.

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

23.0 °C

7.15 g/cm³

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Molar mass

52 g/mol

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Mechanical

PropertyTemperatureValue

Elastic modulus

23.0 °C

294 GPa

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Hardness, Vickers, 10

23.0 °C

180 - 250 [-]

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Poisson's ratio

23.0 °C

0.21 [-]

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Thermal

PropertyTemperatureValue

Coefficient of thermal expansion

23.0 °C

6.2E-6 1/K

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Melting point

1900 °C

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Specific heat capacity

23.0 °C

450 J/(kg·K)

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Electrical

PropertyTemperatureValue

Electrical conductivity

23.0 °C

7.90E+6 S/m

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Electrical resistivity

23.0 °C

1.27E-7 Ω·m

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Electron work function

23.0 °C

4.5 eV

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Acoustical

PropertyTemperatureValue

Sound speed, longitudinal

23.0 °C

6850 m/s

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Sound speed, transversal

23.0 °C

3980 m/s

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Chemical properties

PropertyValueComment

Carbon

0.01 %

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Chromium

99.95 %

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min

Iron

0.03 %

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Molybdenum

0.005

Nitrogen

0.02 %

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Oxygen

0.03 %

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Silicon

0.01 %

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Tungsten

5E-3 %

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Technological properties

Property
Application areas

Thanks to its very high corrosion resistance against many different acids and bases as well as hot gases, chromium is a popular material for all types of protective coating. In combustion equipment, chromium is used as a wear-resistant coating to increase the service life of specific components. As a component in high-temperature fuel cells, chromium also performs brilliantly. Alongside these applications, chromium is also used as a brilliant decorative coating for operating elements on appliances or for jewellery.