Product Introduction
Chrome corundum bricks are corundum refractory products containing Cr2O3. Cr2O3 and Al2O3 form a continuous solid solution at high temperatures, so the high-temperature performance of chrome corundum products is better than that of pure corundum products.
Product Advantage
- Chrome corundum bricks have high density and high strength
- More resistant to air erosion and wear than corundum bricks.
- The introduction of Cr2O3 in corundum bricks changes the intrinsic quality of the product and significantly improves the bricks’ resistance to slag corrosion and permeability.
Application Field
It has good performance in metallurgy, glass, petrochemical and environmental protection hazardous waste disposal industries. Using chrome corundum bricks on gasifiers can further extend the service life of gasifiers.
Product Data
| Items | GGZ-5 | GGZ-12 | GGZ-20 | GGZ-30 |
| Al2O3 +Cr2O3 % ≧ | 93 | 93 | 93 | 93 |
| Cr2O3 % ≧ | 5 | 12 | 20 | 30 |
| Fe2O3 % | 0.3 | 0.3 | 0.3 | 0.3 |
| Bulk density g/cm3 | 3.1 | 3.2 | 3.4 | 3.5 |
| Cold crushing strength Mpa | 100 | 100 | 100 | 100 |
| Apparent porosity % | 18 | 18 | 18 | 18 |
Related Products
Chrome corundum bricks should be low in silicon, low in iron, low in alkali, high in purity, and also have high density and strength. Chrome corundum products are widely used, and the Cr2O3 content is mostly in the range of 9% to 15%. The main mineral composition is α-Al2O3-Cr2O3 solid solution. The secondary mineral composition is a small amount of composite spinel (or no composite spinel) and refractory bricks with a chromium oxide content of 1% to 30%.