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Chromium carbide

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Chromium carbide Basic information

Product Name:
Chromium carbide
Synonyms:
  • chromiumcarbide(cr3c2)
  • CR3C2 160
  • CR3C2 300
  • CHROMIUM CARBIDE
  • CHROMIC CARBIDE
  • CHROMIUM (IC) CARBIDE
  • Chromiumcarbidegraypowder
  • trichromium dicarbide
CAS:
12012-35-0
MF:
C2Cr3
MW:
180.01
EINECS:
234-576-1
Product Categories:
  • metal borides and carbides
  • Inorganics
  • Carbides
  • Ceramics
  • Metal and Ceramic Science
Mol File:
12012-35-0.mol
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Chromium carbide Chemical Properties

Melting point:
1890°C
Boiling point:
3800°C
Density 
6.68 g/mL at 25 °C (lit.)
form 
Powder
Specific Gravity
6.68
color 
gray
Resistivity
75.0 (ρ/μΩ.cm)
Water Solubility 
Insoluble in water.
Crystal Structure
Orthorhombic
Stability:
Corroded by molten metals Ni, Zn, Cu, Cd, Al, Mn, and Fe. Corrosion resistant in molten Sn and Bi.
InChIKey
UFGZSIPAQKLCGR-UHFFFAOYSA-N
EPA Substance Registry System
Chromium carbide (Cr3C2) (12012-35-0)
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Safety Information

RIDADR 
UN3178
WGK Germany 
3
TSCA 
Yes
HazardClass 
4.1
PackingGroup 
III

MSDS

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Chromium carbide Usage And Synthesis

Chemical Properties

Orthorhombic crystals. Highest oxidation resistance at high temperature of all metal carbides also resistant to acids and alkalies.

Uses

Chromium Carbide (CrC), a silver-gray colored coating, has high temperature oxidization-resistant properties used for aluminum and magnesium die-castings.

Uses

Chromium carbide is useful in the surface treatment of metal components. It is used to coat the surface of another metal in a technique known as?thermal spraying. It is also used as an additive in cutting tools made out of cemented carbides, in order to improve toughness by preventing the growth of large grains.

Uses

Chromium carbide (Cr3C2) ceramics has proved to be a potentially useful material because of its excellent electrocal conductivity, high degree of hardness,moderate melting point, and good chemical stability. Chromium carbides are hard and their general use is to provide hard wear-resistant coatings on parts that need to be protected. When combined with a protective metal matrix, corrosion-resistant as well as wear-resistant coatings can be developed that are easy to apply and cost effective. These coatings are applied by either welding or thermal spray. When combined with other carbides, chromium carbide can be used to form cutting tools. Chromium carbide welding electrodes are increasingly used instead of the earlier ferrochrome/carbon-containing electrodes, as they give superior and more consistent results. In ferrochrome/carbon-containing welding electrodes, chromium carbide is created during the welding process to provide a hard wear resistant layer. However, the formation of the carbides is determined by the precise conditions in the weld and therefore there can be variation between welds which is not seen with electrodes containing chromium carbide. This is reflected in the wear resistance of the weld deposit. Using the dry sand rubber wheel test, wear rates of welds deposited from ferrochrome/carbon electrodes have been found to be up to 250% greater compared to chromium carbide.

Flammability and Explosibility

Not classified

Chromium carbide Preparation Products And Raw materials

Raw materials

Chromium carbideSupplier

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