Abstract: In this work the effects of WC concentration on abrasive wear behavior by thermally sprayed WC coating was evaluated using three body abrasive wear tester. A different combination of WC and NI coatings were deposited on steel substrates by flame spraying using powder with different WC concentrations (0 %, 12.5 %, 25 %, and 50 %). Flame torch was used for heating and coating of process. Microstructure properties of coated samples were evaluated using optical microscope and wear testing, were performed on the samples.. Experimental results were compared to determine which coating shows the best quality in terms of the wear resistance. It was found that wear resistance is strongly depend on percentage of WC up to a certain level of mixing after that wear resistance will start decreasing.