BROWN ALUMINUM OXIDE (A)  
     
 
 
     
 
Brown Aluminum Oxide is fused and crystalized under high temperature from a mixture of bauxite and other raw materials. It is characterized by its high hardness, good toughness and sharp shape in size.
It is used to grind metals of high-tensile strength such as steel, annealed malleable iron and hard bronze.
It can also be used as high-class refractory.
 
     
 
GRAIN TYPES AND GRADES:
 
 
Usage
For vitrified wheels
For belts
For sheets
For organic wheels
For blasting
Type & Grade
A
A-P1
A-P2
A-B
A-S
 
     
  CHEMICAL COMPOSITION:  
 
Type & Grade
Grit
Chemical composition (%, by weight)
AI2O3
TiO2
CaO
A
F4~F80
95.0~97.5
1.5~3.8
≤0.45
F90~F150
94.0~97.5
F180~F220
93.0~97.5
F220~finer
≥92.0
A-P1
P12~P80
95.0~97.5
1.5~3.8
≤0.45
P100~P150
94.0~97.5
P180~P220
93.0~97.5
P220~finer
≥92.0
A-B
F4~F80
≥93.0
1.5~4.2
-
F90~F220
≥91.0
F220~finer
≥90.0
≤4.5
A-P2
P8~P80
≥93.0
1.5~4.2
-
P100~P220
≥91.0
P220~finer
≥90.0
≤4.5
A-S
16~220
≥92.0
≤4.2
-
 
 
Note: Special requirement on chemical composition can be satisfied through discussion.
 
     
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