Symbol Item | HI-AL fused Alumina(HA) | HI-AL fused Alumina (HAC) | Brown fused Alumina(A) | White fused Alumina(WA) | Fused Magnesium Alumina spinel(DMA) | Fused Mulite |
Al2O3 | ≥98.00 | ≥98.00 | 95-97.5 | ≥99.00 | 70.00-77.00 | 73.00-77.00 |
SiO2 | ≤0.70 | ≤0.70 | ≤1.20 | 0.15 | 0.30 | 21.00-25.00 |
TiO2 | ≤1.00 | ≤1.00 | 1.5-3.8 | - | - | - |
Fe2O3 | ≤0.20 | ≤0.20 | ≤0.20 | 0.08 | - | - |
MgO | ≤0.40 | ≤0.40 | ≤0.40 | - | 23.00-28.00 | - |
Na2O | ≤0.4 | ≤4.0 | - | |||
True density g/cm3 | 3.90 | 3.90 | 3.90 | 3.90 | 3.50 | 3.00 |
Refractory temperature℃ | 1850 | 1850 | 1850 | 1850 | 1850 | 1800 |
Meltingpoin℃ | 2050 | 2050 | 2050 | 2050 | 2050 | 1850 |
Apparentporsity % | ≤4.00 | ≤4.00 | ≤4.00 | ≤4.00 | ≤3.50 | - |
Powderdrate % | ≤1.00 | ≤1.00 | ≤1.00 | - | ||
Gritsize (1) | 8-5-3-1-0 | 8-5-3-1-0 | 8-5-3-1-0 | 8-5-3-1-0 | 8-5-3-1-0 | 8-5-3-1-0 |
Gritsize (2) | 280F 320F | 280F 320F | 280F 320F | 280F 320F | 280F 320F | - |