In this study, effects of wear speeds on the adhesive wear behavior of heat treated AISI D6 steel were investigated. In normalization, steel specimens were austenitized at 900 and 950 degrees C for 30 minutes and then air-cooled. Sample was annealed at 850 degrees C for 30 minutes. Adhesive wear tests were performed by pin-on-disc adhesive wear tester under loads of 20 and 40 N at a sliding speeds of 1 and 1.5 m s(-1). Annealed sample showed decreasing adhesive wear resistance and hardness. Adhesive wear resistance and hardness of normalized specimen increased up to 900 degrees C for 30 minutes, but it decreased at 950 degrees C for 30 minutes.