
aug 01, 1990 international journal of mineral processing, 29 (1990) 121 - 139 121 elsevier science publishers b.v., amsterdam -- printed in the netherlands laboratory studies on ball wear in the grinding of a hematite-magnetite ore c.s. gundewar k.a. natarajan2, u.b. nayak2 and k. satyanarayana lore dressing division, indian bureau of mines, nagpur 440,laboratory studies on ball wear in the grinding of a,laboratory studies on ball wear in the grinding of a hematite-magnetite ore . by c. s. gundewar, k. a. natarajan, u. b. nayak and k. satyanarayana. cite . marked-ball grinding tests were carried out under different grinding conditions and environments. three types of balls were used, namely, cast hyper steel, high chrome cast iron and en-31