The purpose of this study was performed to compare to the characteristics (microstructure, phase change and hardness, erosion rate) of HVOF sprayed coatings with 20wt% NiCr claded and 7wt%NiCr mixed $ extrm{Cr}_{3} extrm{C}_{2}$ powder. In the case of the 20wt% NiCr claded $ extrm{Cr}_{3} extrm{C}_{2}$ powder, microstructural feature showed that the primary $ extrm{Cr}_{3} extrm{C}_{2}$ was remained in the coating but was barely remained in the mixed $ extrm{Cr}_{3} extrm{C}_{2}$ coating. As a results of XRD analysis, both 20wt%NiCr claded and 7wt% NiCr mixed $ extrm{Cr}_{3} extrm{C}_{2}$ powder was decomposed during spraying but the degree of decomposition of the 20wt%NiCr claded was lower than 7wt%NiCr mixed $ extrm{Cr}_{3} extrm{C}_{2}$ powder. After spraying the mixed powder for microhardness was higher than claded $ extrm{Cr}_{3} extrm{C}_{2}$ powder and which was increased up to $ extrm{Hv}_{300}$= 1665 after heat treatment to $1000^{circ}C$. however. 20wt%NiCr claded $ extrm{Cr}_{3} extrm{C}_{2}$ became to decrease at $600^{circ}C$ which was the maximum.