Brown Alundum

Brown Alundum is produced by the fusion of calcined bauxite in an electric arc furnace at over 2000 centigrade. It stands out due to its very high toughness, so that it has a long lifespan, but cool cutting is not expected. By these characters, it widely uses for working on regular steel, carbon steel, forging steel, ingot steel, cast iron, and malleable iron, as well as some non-ferrous metals.

Product Details

 A Grade Brown Alundum
Chemical Analysis(%)
Physical Properties
Al2O3
92.5-97.0%
Specific Gravity
3.90g/cm3
Fe2O3  
0.3-1.0%
Bulk density
1.53-1.99g/cm3
SiO2
1.0-2.0%
Mohs Hardness
9.0
TiO2  
1.5-4.0%
  
Size
FEPA
F8 F10 F12 F14 F16 F20 F22 F24 F30 F36 F40 F46 F54 F60 F70 F80 F90 F100 F120 F150 F180 F220 F230 F240 F280 F320 F360 F400 F500 F600 F800
JIS
#8 #10 #12 #14 #16 #20 #24 #30 #36 #46 #54 #60 #70 #80 #90 #100 #120 #150 #180 #220 #240 #280 #320 #360 #400# #500 #600 #700 #800 #1000 #1200 #1500 #2000
B Grade Brown Alundum
Chemical Analysis(%)
Physical Properties
Al2O3
70-80%
Specific Gravity
3.50-3.90g/cm3
Fe2O3  
8-15%
Bulk density
1.30-1.90g/cm3
SiO2
2-5%
Mohs Hardness
7.0-9.0
TiO2  
  3-5%
  
Size
FEPA
F8 F10 F12 F14 F16 F20 F22 F24 F30 F36 F40 F46 F54 F60 F70 F80 F90 F100 F120 F150 F180
JIS
#8 #10 #12 #14 #16 #20 #24 #30 #36 #46 #54 #60 #70 #80 #90 #100 #120 #150 #180
C Grade Brown Alundum
Chemical Analysis(%)
Physical Properties
Al2O3
50-65%
Specific Gravity
3.50-3.90g/cm3
Fe2O3
12-20%
Bulk density
1.30-1.90g/cm3
SiO2    
15-25%
Mohs Hardness
7.0-9.0
TiO2  
  4-6%
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Size
FEPA
F8 F10 F12 F14 F16 F20 F22 F24 F30 F36 F40 F46 F54 F60 F70 F80 F90 F100 F120 F150 F180
JIS
#8 #10 #12 #14 #16 #20 #24 #30 #36 #46 #54 #60 #70 #80 #90 #100 #120 #150 #180
Main Applications of Brown Alundum:
  • Bonded Abrasives and Coated abrasives     
  • Refractory,casting,foundry,and painting etc
  • Wet and dry blast media,grinding and polishing etc                                 
  • PCB plate(PCBA,FPC,LED) blasting
  • Polishing wax, Grinding stones, polishing pads, etc                                   
  • Removal of scale, rust, and old coatings
  • Ceramics shapes     
  • Grinding wheels, Cup wheels, etc
  • Brake and friction linings
Packing
25kgs pvc bags+1mt big bg
25kgs pvc bags+pallet