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Brown Fused Alumina
release date:2013-12-20 click:6772
Brown Fused Alumina

Brown Fused Alumina



The main material of brown fused alumina is bauxitewhich is electrically fused in high temperature. 

It is brown and featured high hardness and toughness. 

The abrasive tools made of it are suitable for the grinding of carbon steelmalleable cast iron, hard bronzeetc.

In addition. they are used as refractory materials, chemical additive, precision founding and anti-sliding materials.

Chemical composition

Usage
Grit
Chemical  Component  %
Al2O3
 TiO2
 SiO2
 Fe2O3
Refractory

0~1mm   

1~3mm

3~5mm

5~8mm

≥ 95.00 
≤ 3.20
≤ 1.00
≤ 0.3
Bonded  &   Coated  Abrasive

F4~F80            

P12~P80

95.00~96.50
1.70~3.40
≤ 1.00 
≤ 0.30

F90~F150  

P100~P150

94.50~96.50
1.70~3.40
≤ 1.00
≤ 0.30

F180~F220  

P180~P220

94.50~96.50
1.70~3.60
≤ 1.00
≤ 0.30

F230~F800  

P240~P800

≥ 93.50
1.70~3.80
≤ 1.20
≤ 0.30

F1000~F1200  

P1000~P1200

≥ 93.00
≤ 4.00
≤ 1.40
≤ 0.30

P1500~P2500

≥ 92.50
≤ 4.20
≤ 1.60
≤ 0.30

 Physical property

Basic minerals 
Crystal sizeμm
True density g/cm3
Bulk density g/cm3
Knoop hardnesskg/mm2
α-Al2O3 
300-12000
3.90
1.5-1.95
1800-2200

    

   


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