Casting steel ball diameter from 20-150mm with high hardness, low wear,
low broken rate, strong heat resistant and corrosion resistance, chromium content
from 1%-28%, HRC45-63,.Detailed specifications can be customized according
to customer demand. It is particularly used in cement industry working in the grinder with high temperature,high crushing and strong abrasion .
The grinding ball with chromium content 1% - 3% and hardness HRC ≥45 called
low chromium alloy cast ball. Low chromium ball is produced by the intermediate frequency electric furnace smelting, metal mold or sand casting .
Features
Good toughness, low abrasion rate, low broken rate ,low chromium ball hardness can reach 45-55HRC
http://www.canchunmetal.com/low-chrome-grinding-balls/648.html
low chrome grinding balls