This research devoted to studying the properties of sliding wear of
three groups of copper alloys chosen to this study. They are Brass (70/30),
Silicon bronze and Silicon-Brass. These three groups have been examined
by using (pin on Disc) apparatus under different wear conditions including
applied loads and disc hardness is constant (35HRC). This study was
concluded that the wear rate was increased as the applied load and the wear
behavior was changed from mild wear into transition wear as the applied
load is increased. This research concludes that the alloy of Silicon-brass was
the best alloy due to high wear resistance in comparison with the other