Raw material This product is mainly made of alumina powder and high quality quartz sand, smelted by a large-scale high temperature electric arc furnace.
Processing
Advantage
1.uniform expansion
2.good thermal shock resistance
3.high refractoriness under load
4.less of high-temperature creep
5.high hardness
6.good resistance to chemical corrosion.
| Guarantee % | Typical % | |
| Al2O3 | 72-76 | 75.3 |
| SiO2 | 23-26 | 24.08 |
| Fe2O3 | ≤0.10 | 0.05 |
| R2O | ≤0.50 | 0.18 |
| RO | ≤0.30 | 0.28 |
| Mullite(%) | ≥95 | |
| Glass(%) | ≤5 | |
| Linear expansion coefficient(1/℃） | -6.0 X 10-6 | |
| Bulk density(g/cm3) | ≥3.0 | |
| Particle size | 0-1-3-5-8mm, 180 mesh, 200 mesh, 325 mesh | |
| Package | 25kg/ton, 1 ton/Jumbo Bag | |
Application
Glass kiln lining bricks, alkali free glass settling pond, large-scale smelting blast furnace bricks, blast furnace low creeping sillimanite bricks, ceramics kilns, saggars, pillar, petrochemicals and other industries. It is high grade refractory raw material.
Packing
