Grate Bars used in the sintering process of steel companies are exposed to high temperatures, oxidation and abrasive environments. To extend the lifetime of the Grate Bar, surface coating was applied to enhance performance at high temperatures and reinforce abrasion resistance. To evaluate mechanical and chemical properties of these coatings, various tests such as abrasion resistance testing and high temperature oxidation testing were conducted. Based on results of the tests, selection of applicable coating materials and techniques were obtained in the field.