products
product yield：3000mt/year
producers：jining canal emery co.,ltd.
product description：on the base of white corundum increased by 22% chromium and smelted in electric arc, it appears amaranth. the hardness is little bit higher than adamantine spar, similar with corundum, the micro-hardness can reach 2200-2300kg/mm2. the toughness is higher than corundum and little bit lower than adamantine spar.
physical and chemical indicators: implementation of standards（gb/t7986-2001）
| item | unit | value |
| al2o3 | % | 98.5 min |
| cr2o3 | % | 0.2-0.45 |
| particle size | gb/t2481.1-1998 | 12#-220# |
| particle density | g/cm3 | 3.90 min |
| magnetic content | % | 0.004 max |
