产品介绍
products center 金刚砂
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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 |