Description
Chrome corundum bricks are made of alumina chromium raw materials, chromium oxide, alumina and other materials, through high temperature sintering. The total content of alumina and chromium oxide is not less than 90%, and the content of chromium oxide is not more than 50%.
Chrome corundum brick is a high grade refractory material with excellent performance. It can maintain a stable shape in an ultra-high temperature environment of 1800℃ and can also resist rapid temperature changes.
Chrome corundum brick has good compressive strength and can withstand pressures above 100MPa without breaking or being damaged.
In addition, chrome corundum bricks also have good high temperature volume stability and electrical and thermal conductivity.
Specifications
| Items | Grade | ||||
| GGZ-5 | GGZ-12 | GGZ-20 | GGZ-30 | ||
| ω(Cr2O3) / % | ≥ 5 | ≥ 12 | ≥ 20 | ≥ 30 | |
| ω(Cr2O3+Al2O3) / % | ≥ 93 | ≥ 93 | ≥ 93 | ≥ 93 | |
| ω(Fe2O3) / % | ≤ 0.3 | ≤ 0.3 | ≤ 0.3 | ≤ 0.3 | |
| Open Porosity / % | ≤ 18 | ≤ 18 | ≤ 18 | ≤ 18 | |
| Bulk Density / (g/cm3) | ≥ 3.10 | ≥ 3.20 | ≥ 3.40 | ≥ 3.50 | |
| CCS / MPa | ≥ 100 | ≥ 100 | ≥ 100 | ≥ 100 | |
Applications
Chrome corundum bricks are widely used in many high-temperature industrial such as metallurgy, glass, ceramics, and chemicals due to their excellent performance.
In the metallurgical industry, chrome corundum bricks are often used in the furnace walls, linings, and roofs of electric furnaces and refining furnaces. In addition, they are also used in ceramic kilns, chemical reactors, roasting furnaces, and waste incinerators.
