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Chrome corundum brick
product Overview：
Chrome corundum brick is mainly made by aluminum-chromium material, chromium hemitrioxide and alumina through mixing as per certain ratio, high pressure forming and burning under high-temperature. It’s featuring high refractoriness under load, large strength and good corrosion resistance. It’s mainly used for coal-water slurry pressurized gasifiers, carbon black reactors and other high-temperature industrial kilns, etc.
Physical and chemical indicators：
| Item | GGZ-5 | GGZ-12 | GGZ-20 | GGZ-30 |
| Cr2O3 % ≥ | 5 | 12 | 20 | 30 |
| Cr2O3 +Al2O3 % ≥ | 93 | 93 | 93 | 93 |
| Fe2O3 % ≤ | 0.3 | 0.3 | 0.3 | 0.3 |
| Apparent porosity % ≤ | 18 | 18 | 18 | 18 |
| Volume density g/cm³ ≥ | 3.1 | 3.2 | 3.4 | 3.5 |
| Ambient compression strength Mpa ≥ | 100 | 100 | 100 | 100 |
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