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Brown Alundum
Brown Alundum is based on high quality bauxite as raw material, mix with moderate anthracite and iron fillings, by melting at 2000℃ in electrical arc, then crushing, selecting and shaping to be various size.
A GRADE
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
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
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% | / | / |
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:
-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
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