1. Technics: Calcined temperature beyond 1300C, the alumina powder be calcined without Boron, Ultimate crystal size 3-5um.
2. Application: TCH-1/TCH-2/TCH-3 is good for producing electronic alumina ceramic/wear resistant ceramic(alumina wear tile, alumina ceramic brick, alumina ball)/alumina ceramic substrate.
3. Payment Term: TT /LC AT sight.
4. Delivery time: Within 2 weeks to ship since the date we receive your deposit or L/C at sight.
5. AI2O3>99.7% Na2O <0.3% Fe2O3<0.024% SiO2<0.019% TiO2<0.008%.
6. Loss weight when burning<0.2% Density=3.96g/cm3 a-Al2O3>93%
Medium particle size(D50) 75um Ultimate crystal size 3-5um
BET specific surface area 1.0 m2/g
CALCINED ALUMINA Metallurgical grade
| Chemical Composition |
SiO2 (wt%) |
0.011 |
| Fe2O3 (wt%) |
0.015 |
| TiO2(wt%) |
0.003 |
| Na2O(wt%) |
0.35 |
| CaO(wt%) |
0.024 |
| Ga2O3(wt%) |
0.0086 |
| P2O5(wt%) |
0.0003 |
| Al2O3(wt%) |
98.9 |
| LO I(wt%) 300-1000ºC |
0.7 |
| Particle size(wt%) |
+150μm(100mesh) |
2 |
| -45μm(325mesh) |
7 |
| BET (m2/g) |
70 |
| Alpha Phase |
5% |
| Angle of Repose (º) |
32 |
| Loose Bulk Density (kg/m3) |
961 |
| Packed Bulk Density (kg/m3) |
1177 |
Audited Supplier 
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