white fused alumina
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White Fused Alumina (Refractory grade)
White Fused Alumina(WFA or WA)is made from chemical by Higgns furnace or Tilting furn
WHITE FUSED ALUMINA
( WFA )
Items | Unit | Index | Typical | ||
Chemical composition | Al2O3 | % | 99.20min | 99.52 | |
SiO2 | % | 0.20max | 0.11 | ||
Fe2O3 | % | 0.10max | 0.07 | ||
Na2O+K2O | % | 0.40max | 0.23 | ||
Refractoriness |
| 1850min | |||
Bulk density | g/cm3 | 3.50min | |||
| Mohs hardness | --- | 9.00min | |||
| Principal crystalline phase | --- | α-Al2O3 | |||
| Refractory grade | Grain | mm | 0-50,0-1, 1-3, 3-5,5-8 | ||
| Fines | mesh | -200, 325 | |||
| GritF grade and P grade | FEPA | 16, 24, 46, 100,180,220 | |||
