1.Description:
Brown Fused Alumina is fused and crystallized under the high temperature of above 2250°C with high quality bauxite, carbon and iron as raw material.
2.Characteristics:
Brown Fused Alumina is of compression strength, high toughness, good self-sharpening, lower expansion coefficient, no rusty spot, good hydrophily, high cleanliness, heat resistance and chemical stability,etc
3.Application:
Brown Fused Alumina is used in many applications including steel and foundry industries, castables, light-weight insulating refractories. It also be used in grinding wheels, sandpaper, blasting media, metal preparation, lapping, polishing,and grinding.
4.Specification:
Items | Unit | Tilting Furnace | Fixed Furnace | ||||
Guarantee Value | Typical Value | Guarantee Value | Typical Value | ||||
Chemical Composition | Al2O3 | % | 95 min | 95.5 | 95 min | 95.4 | |
SiO2 | % | 1.00 max | 0.9 | 1.5 max | 1.03 | ||
Fe2O3 | % | 0.30 max | 0.20 | 0.30 max | 0.23 | ||
TiO2 | % | 3.00 max | 2.80 | 3.00 max | 2.80 | ||
CaO MgO | % | 1.0 max | 0.56 | 1.0 max | 0.54 | ||
Melting Point | ℃ | 2050 | |||||
Refractoriness | ℃ | 1980 | |||||
True Density | g/cm3 | 3.85-3.90 min | |||||
Mohs hardness | - | 9.00 min | |||||
Refractory Grade | Grain Size | mm | 8-5, 5-3, 3-1, 1-0 | ||||
Fine Powder | mesh | -80, 100, 150, 200, 325F | |||||
Abrasive Grade | FEPA | F14, 30, 150, 220 |