White corundum/fused alumina grains and micropowergroup
1.sizes 12-220 240-1200 #12-1200
2.Al2O3 99%
3.0-1mm 1-3mm 3-5mm
Model:40#
Chemical compositions
Physical properties
Items
Value of specification(%)
Items
property
Al2O3
99.6min
Color
White
SiO2
0.04max
Bulk density
1.93g/cm3
NaO2
0.22max
True density
3.93g/cm3
Fe2O3
0.04max
Hardness
Morse hardness
9
Micro hardness
21600-22600kg/mm3
Usage
to make emerypaper
Content of magnetic substance
0.0023%max