WFA refractory WHITE FUSED ALUMINA 0-1MM 0-0.5MM 0-0.2MM 325 MESH
White fused alumina was made from the high quality alumina by melting above 2200℃ in the electric arc furnace and cooling.
White fused alumina is white with the main crystal phase alpha-Al2O3.
White fused 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.
Physical and Chemical Composition
| Physical Properties | |
| Hardness: micro | 21600-22600kg/mm3 |
| Hardness: Mohs | 9.0 min |
| Specific Gravity | 3.90g/cm3 MIN |
| Bulk Density | 3.60g/cm3 MIN |
| Particle Shape | Blocky, Sharp |
| Color | white |
| Chemical compositions | |
| Al2O3 | 99.00min |
| SiO2 | 0.15max |
| Na2O | 0.40max |
| Fe2O3 | 0.10max |
| CaO | 0.03max |
Applications
Refractory castables
Precision foundry material
Typical Size
| Fraction sand or powder | |
| Grit designation | Passing/External rate % min |
| 0-0.5mm | 90 |
| 0-1mm | 90 |
| 1-3mm | 90 |
| 3-5mm | 90 |
| 5-8mm | 90 |
| 100 mesh | 90 |
| 200 mesh | 90 |
| 320 mesh | 90 |
Customized size is available.
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