Stainless steel is one of the most widely used steels for structural applications. This paper quantifies the effect of heat treatment on the wear resistance behaviour of stainless steel 304 grades using pin on disc method. Ageing at different temperature ranges imparts hardness to the SS304 specimen which in turn affects the wear resistance characteristic. Different wear parameters have been calculated using Archard's equation and wear scar diameter method. Microstructure has been studied using optical microscopy. Scanning electron microscopy has been used to investigate the wear mechanism.