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.
Advantages
Chrome corundum refractory bricks are selected when the lining has to handle more than temperature. In many severe furnace zones, the hot face must resist molten material, corrosive slag, chemical gas, abrasion, and temperature cycling at the same time.
Typical performance advantages include:
– High refractoriness: Suitable for high-temperature industrial furnace zones.
– Corrosion resistance: Helps resist selected slag, glass melt, chemical medium, and molten material attack.
– Abrasion resistance: Useful where dust, particles, charge movement, or mechanical wear can damage the hot face.
– High cold crushing strength: Supports lining stability before service and during installation.
– Thermal shock resistance: Helps reduce cracking risk where heating, cooling, or process fluctuation occurs.
– High-temperature volume stability: Helps the brick maintain lining shape under heat.
– Dense structure: Lower porosity can help reduce penetration in suitable applications.
For buyers, these properties should be reviewed together. A higher Cr2O3 number alone does not guarantee a better result. The grade must match the furnace area, corrosive medium, operating temperature, mechanical wear, and service target.
Specifications
The “TS” suffix indicates that this grade is a Thermal Shock Resistance-enhanced product. Compared with the standard grade, the TS series features an optimized formulation and manufacturing process that significantly improves thermal shock stability. It can better withstand rapid heating and cooling conditions encountered during operation, effectively reducing cracking and spalling caused by thermal stress.
| Item | Grade | |||||
| CHROS30 | CHROS20 | CHROS20 TS | CHROS12 | CHROS12 TS | CHROS5 | |
| ω(Al2O3) / % ≥ | 60 | 70 | 70 | 80 | 80 | 86 |
| ω(Cr2O3) / % ≥ | 30 | 20 | 20 | 12 | 12 | 5 |
| ω(Fe2O3) / % ≤ | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| Bulk Density / g/cm3 ≥ | 3.40 | 3.35 | 3.35 | 3.30 | 3.30 | 3.20 |
| Apparent Porosity / % ≤ | 16 | 16 | 16 | 16 | 16 | 16 |
| CCS / MPa ≥ | 150 | 150 | 150 | 150 | 150 | 150 |
| R.U.L (T0.6) / ℃ ≥ | 1700 | 1700 | 1700 | 1700 | 1700 | 1700 |
Product Size: We offer refractory brick sizes that comply with ISO, EN, ASTM, JIS, etc, and customized sizes.
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.
Our services: refractory technicians, refractory installation drawings, refractory bricks and castables, refractory masonry services, refractory mixes and precast cell, special shaped bricks, insulation materials, installation supervision, accident investigation and resolution, other customized services.
