One of the most significant problems in the copper production industry is maintaining good efficiency of ore grinding and low cost of this process. The two key factors affecting the costs are the energy consumption and grinding media wear. With respect to grinding media, worldwide steel consumption alone was estimated at over 600,000 t per annum in 2004 [15]. However, in 2012 this number was raised only in South America, North America, and Australasia to about 900,000 t per annum [1