White corundum refractory material
White Corundum, a kind of high-grade refractories, 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.The white alumina produced in titling electric arc furnace has the advantage of high bulk density and low porosity and the volume stability and thermal shock resistance can be improved.
| Size | 12-6mm 10-8mm 8-5mm 6-3mm 5-3mm 3-1mm 1-0mm 1-0.5mm0.5-0.212mm 0.5-0mm 0.3-0mm | 60mesh-0 80mesh-0 100mesh-0 120mesh-0 150mesh-0 200mesh-0 325mesh-0 | ||
| Chemical Compositions(%) | Al2O3 | 99.5min | Al2O3 | 99.0 min |
| Fe2O3 | 0.04max | Fe2O3 | 0.20max | |
| Na2O | 0.30max | Na2O | 0.40max | |
| SiO2 | 0.02max | SiO2 | 0.05max | |
Main Physical Properties
| MOHS HARDNESS | 9.0 |
| BULK DENSITY | 1.75-1.95g/cm3 |
| SPECIFIC GRAVITY | 3.95g/cm3 |
AVAILABLE SIZES
| Fraction | 0-1mm 1-3mm 3-5mm 5-8mm… | |
| Fine | -100mesh -200mesh -320mesh… | |
| Macrogrit | 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 | |
|
Micropowder
| M | 4# 3# M28 M20 M14 M10 M7 M5 |
| JIS | #240 #280 #320 #360 #400# #500 #600 #700 #800 #1000 #1200 #1500 #2000 #2500 #3000 #4000 #6000 #8000 #10000 | |
| FEPA | F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 F1500 F2000 | |
PACKING
 |  |  |  |
| 25kgs pvc bags | 1mt big bag | 25kgs pvc bags+1mt big bag | 25kgs pvc bags+pallet |
