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Brown Corundum is fused and crystallized under the high temperature of above 2250C with high quality abrasive
bauxite as raw material and matched by the carbon material and scrap iron. It is characterized by good self-sharpening and high grinding ability.
It is hard and tough material,used in manufacturing of grinding wheels(both vitrified and resin bonded)and coated products.
There grains are also used for shot blasting and polishing media.
Refractory grade BFA is used as a raw material in the manufacture of high alumina refractory.
Purpose | Specification | Chemical composition(%) | |||||
Al2O3 | Fe2O3 | SiO2 | TiO2 | Magnetic material content(%) | |||
For abrasive | F | 4#—80# | 95.0 Min | 0.3 Max | 1.5 Max | 3.0Max | 0.05 Max |
90#—150# | 94.0 Min | 0.3 Max | 1.5 Max | 3.0Max | 0.03 Max | ||
180#—240# | 93.0 Min | 0.3 Max | 1.5 Max | 3.5 Max | 0.02 Max | ||
P | 8#—80# | 95.0 Min | 0.2 Max | 1.2 Max | 3.0 Max | 0.05 Max | |
100#—150# | 94.0 Min | 0.03 Max | |||||
180#—220# | 93.0 Min | 0.3 Max | 1.5 Max | 3.5 Max | 0.02 Max | ||
W | 1#-63# | 92.5 Min | 0.5 Max | 1.8 Max | 4.0 Max | — | |
For refractory | Size sand | 0-1mm1-3mm3-5mm5-8mm8-12mm | 94.5 Min | 0.3 Max | 1.5 Max | 3.0 Max | — |
0-3mm0-5mm0-10mm0-25mm | 94.5Min | 0.3 Max | 1.5Max | 3.0Max | — | ||
Fine powder | 180#-0240#-0320#-0 | 93.5 Min | 0.5 Max | 1.5 Max | 3.5 Max | — | |