Description
White fused alumina
White fused alumina was made from the high quality alumina by melting above 2000 in the electric arc furnace and cooling. It is white with the main crystal phase alpha-Al2O3.
1. Used for refractory,furnace burden,castable,ramming compoynd, painting etc
| Section sand | fine powder/macropowder | |||
| Size | 8-5mm 6-3mm 5-3mm
3-1mm 1-0mm |
60mesh-0 80mesh-0 100mesh-0 120mesh-0 150mesh-0 200mesh-0 325mesh-0 | ||
| Chemical compositions(%) | Al2O3 | 99.5min | Al2O3 | 99.0min |
| Fe2O3 | 0.04max | Fe2O3 | 0.20max | |
| Na2O | 0.30max | Na2O | 0.40max | |
| SiO2 | 0.02max | SiO2 | 0.05max | |
2. Used for abrasives,blasting,grinding,ceramic,rust removal,surface treatment,floor coating,abrasion resistant layer etc
| Granularity sand/Granular sand/ particle size/ grit size sand/grain size sand | |||
| Size | FEPA | F8 F10 F12 F14 F16 F20 F22 F24 F30 F36 F46 F54 F60 F70 F80 F90 F100 F120 F150 F180 F220 | |
| JIS | #8 #10 #12 #14 #16 #20 #24 #30 #36 #46 #54 #60 #70 #80 #90 #100 #120 #150 #180 #220 | ||
|
Chemical compositions(%) |
Al2O3 | 99.5min | |
| Fe2O3 | 0.04max | ||
| Na2O | 0.26max | ||
| SiO2 | 0.02max | ||
3. Used for abrasives ,lapping,Polishing,Polishing wax,polishing fluid,grinding stones,whetstone,abrasive stone polishing pads,abrasive discs etc
| Micropowder/burnishing powder/polishing powder | |||
|
Size |
FEPA | F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 F1500 F2000 | |
| JIS | #240 #280 #320 #360 #400# #500 #600 #700 #800 #1000 #1200 #1500 #2000 #2500 #3000 #4000 #6000 #8000 | ||
|
Chemical compositions(%) |
Al2O3 | 99.20-99.7 | |
| Fe2O3 | 0.04-0.08 | ||
| Na2O | 0.23-0.35 | ||
| SiO2 | 0.01-0.05 | ||
Main Physical Properties
| Mohs hardness | 9.0 |
| Bulk density | 1.75-1.95g/cm3 |
| Specific gravity | 3.95g/cm3 |
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