High Quality White Fused Alumina 5-8mm For Refractory
Al2O3 white electrocorundum refractory,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.
Outstanding features are small crystal size, impact resistance, if the use of a self-grinding machine
processing broken, most of the particles are spherical particles, dry clean surface, easy to bond agent.
| Typical Chemical composition | ||
| Section Sand(1-3mm) | AL2O3 | 99.40% |
| SiO2 | 0.15% | |
| NA2O | 0.28% | |
| Fe2O3 | 0.06% | |
| CaO | 0.03% | |
| Fine powder(200-0#) | AL2O3 | 99.10% |
| SiO2 | 0.16% | |
| NA2O | 0.32% | |
| Fe2O3 | 0.08% | |
| CaO | 0.04% | |
| Typical physical properties | ||
| Hardness: | Mohs:9.0 | |
| Maximum service temperature: | 1900 ℃ | |
| Melting Point: | 2250 ℃ | |
| Specific Gravity: | 3.95g/cm3 | |
| Volume density | 3.6g/cm3 | |
| Bulk density(LPD): | 1.55-1.95 g/cm3 | |
| Color: | White | |
| Particle shape: | Angular | |
| AVAILABLE SIZES | ||
| Section Sand | 0-1mm,1-3mm,3-5mm,5-8mm | |
| Fine powder | 200#-0 320#-0 | |
Al2O3 white fused alumina compound refractory material is an optimal refractory material to make
refractory bricks in ladles and fluidized bed furnaces in casting and foundry industries.
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