The test results of grinding balls of the fifth group of hardness in aerocrete plant (Azerbaijan).
Logistics and customs clearance of steel grinding balls
The company “Energosteel” has produced grinding balls 30 mm (volume – 150 tons) of high carbon alloy steel in early October 2016. This party of grinding balls showed higher hardness values throughout cross section of the ball with a surface hardness 65-66HRC and volumetric hardness – 64-65 HRC.
According to an old national quality standard for steel grinding balls (3499-97) and to a new national quality standard for steel grinding balls (DSTU 8538: 2015) these products comply with the fifth group of hardness.
Grinding balls have been successfully tested for the impact resistance. Thirty balls have been selected from a batch for the experiment. Each selected ball sustained the total impact energy of 64 312 J without destruction.
This party of steel grinding balls for ball mill will be shipped in the nearest future to the Middle East market.