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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.

Properties

Acoustical

Sound speed, longitudinal clong

6850 m/s at 20 °C

Sound speed, transversal ctrans

3980 m/s at 20 °C

Electrical

Electrical conductivity σel

7.90E+6 S/m at 20 °C

Electrical resistivity ρel

1.27E-7 Ω·m at 20 °C

Electron work function We

4.5 eV at 20 °C

General

Density ρ

7.15 g/cm³ at 20 °C

Molar mass M

52 g/mol

Mechanical

Elastic modulus E

294 GPa at 20 °C

Hardness, Vickers, 10 HV 10

180 - 250 [-] at 20 °C

Poisson's ratio ν

0.21 [-] at 20 °C

Thermal

Coefficient of thermal expansion α

6.2E-6 1/K at 20 °C

Melting point Tm

1900 °C

Specific heat capacity cp

450 J/(kg·K) at 20 °C

Chemical properties

Element

Weight %

Comment

Mo

-

0.005

Cr

99.95 %

min

Fe

0.03 %

O

0.03 %

N

0.02 %

More

Technological properties

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.

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.