Chromium carbide is gray powder with rhombic system structurewhich is undissoluble in water and resistant to acid and alkali.It is high melting-point inorganic material with wear resistancecorrosion resistance and resistance to oxidation at elevated
temperature(1000 ~ 1100oC)and is expansively used as thermal spray material to protect the
metal surfaceand as additive to fine the cemented carbide crystal and some other
wear-resistant and corrosion—resistant organ as well.Cr3C2 cermet has excellent resistance to oxidation at high temperature.The cermets surface only will darken in some sort after exposed at
980oC for 5 hours.However18-8 stainless steel destroyed obviously and the WC-6Co alloy
oxidized entirely at same condition.