Home Categories Inorganic chemistry Chromium carbide
A2399912

Chromium carbide , 99.5%metalsbasis , 12012-35-0

Synonym(s):
CR516010

CAS NO.:12012-35-0

Empirical Formula: C2Cr3

Molecular Weight: 180.01

MDL number: MFCD00016041

EINECS: 234-576-1

Pack Size Price Stock Quantity
10g RMB28.80 In Stock
50G RMB96.00 In Stock
250G RMB440.80 In Stock
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Update time: 2022-07-08

PRODUCT 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

Description and 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.

Safety

Symbol(GHS) 
GHS02
Hazard statements  H228
Precautionary statements  P210-P240-P241-P280-P370+P378a
RIDADR  UN3178
WGK Germany  3
TSCA  Yes
HazardClass  4.1
PackingGroup  III

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