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Get PriceHigh chrome brick for sale is imporant in the high temperature applications. This high chrome product is suitable for extremely high temperature uses. Because there is improvement in raw matrerial and production.
Cr2O3 (≥)
Cr2O3+Al2O3+ZrO2 (≥)
Bulk Density
Cold Crushing Strength
The high chromium bricks are produced by chromium oxide and alumina as the main raw materials. Besides, it also includes a small amount of zirconium oxide. Additionally, this product will be sintered at high temperatures. Therefore, this lining brick can obtain a content of more than 75% CrO3 and 98% CrO2, Al2O3 and ZrO2. High chromium bricks are generally chromium oxide products produced with industrial pure chromium green as the main raw material.
| Item/Grade | GGZ-75 | GGZ-85 | GGZ-90 | GGZ-95 | |
|---|---|---|---|---|---|
| ω (Cr2O3)/% | μ0 ≥ | 75 | 85 | 90 | 95 |
| σ | 0.6 | ||||
| ω (Cr2O3+Al2O3+ZrO2)/% | μ0 ≥ | 98 | 98 | 98 | 98 |
| σ | 0.7 | ||||
| ω (SiO2)/% | μ0 ≤ | 0.2 | 0.2 | 0.2 | 0.2 |
| σ | 0.05 | ||||
| ω (Fe2O3)/% | μ0 ≥ | 0.3 | 0.3 | 0.3 | 0.3 |
| σ | 0.05 | ||||
| ω (K2O+Na2O)/% | μ0 ≥ | 0.2 | 0.2 | 0.2 | 0.2 |
| σ | 0.05 | ||||
| Bulk Density (g/cm³) | μ0 ≥ | 3.9 | 4.2 | 4.22 | 4.25 |
| σ | 0.8 | ||||
| Apparent Porosity/% | μ0 ≤ | 18 | 18 | 16 | 16 |
| σ | 0.8 | ||||
| Cold Crushing Strength/MPa | μ0 ≥ | 120 | 120 | 120 | 120 |
| σ | 7 | ||||
One of the primary advantages of chromite bricks is the exceptional resistance to chemical erosion. It can withstand the corrosive effects of acids, alkalis and water. This makes it highly suitable for applications where exposure to corrosive substances is common. For example, it’s used in chemical plants, metallurgical industries and wastewater treatment facilities. Besides, the dense structure and chemical composition of chrome brick ensures the longevity and durability of the brick.
Chrome brick exhibits excellent resistance to abrasion due to its high mechanical strength. It can withstand the physical wear caused by mechanical forces, such as friction and impact. This property makes chromite refractory firebricks ideal for applications involving high abrasion, such as in steelmaking, cement kilns, and power generation plants. Moreover, the robust structure of chrome brick prevents it from wearing down easily, ensuring a longer service life and reduced maintenance costs.
Chrome brick is renowned for its exceptional resistance to high temperatures. It can withstand extreme heat conditions, with a maximum refractoriness of up to 2000°C. This makes it suitable for applications where exposure to high temperatures is prevalent, such as in glass manufacturing, incinerators, and furnace linings. As a result, the high melting point of chrome brick prevents it from melting or deforming under intense heat, which ensures the stability and integrity of the structure.
Another significant advantage of chrome brick is its resistance to thermal shock. Thermal shock refers to the sudden and drastic changes in temperature that can cause materials to crack or break. Chrome brick can withstand these thermal shocks, making it ideal for applications involving rapid temperature changes, such as in kilns, furnaces and boilers. The ability of chrome brick to maintain stability under high-temperature impact ensures the efficient operation of these systems without compromising their structural integrity.
Chrome brick has a low porosity, which means it has fewer open spaces or pores in its structure. This low porosity prevents the penetration of chemical substances, further enhancing its resistance to chemical erosion. Additionally, the low porosity of chrome brick reduces the risk of structural spalling, which is the breaking or chipping of the brick’s surface. Therefore, the property of low prosity ensures the longevity and reliability of chrome brick in various industrial applications.
Kerui chrome brick exhibits excellent resistance to slag attack, making it highly suitable for applications involving contact with molten slag, such as in steelmaking and non-ferrous metal industries. The chemical composition and dense structure of advanced refractory chrome brick enable it to withstand the corrosive effects of slag, which maintains stability and performance over time. This resistance to slag erosion ensures the efficient operation of industrial processes and reduces downtime for maintenance and replacement.
To meet the specific requirements of customers, KERUI offers two options for the main raw material of chromium oxide bricks: sintered Cr2O3 or electrically fused Cr2O3 with a higher density. KERUI has introduced a fully automated batching system, which enables precise and efficient material preparation. Therefore, this automated process ensures that the high chrome brick is produced with consistent quality and reduces the chances of human error. By implementing this automated system, KERUI can deliver high-quality high chrome bricks to customers in a shorter period.
Sintering, a critical step in the production of high chrome bricks, has always been a challenge. KERUI engineers have focused on this aspect and conducted extensive experiments to optimize the sintering process. Through careful observation and testing under different conditions, Kerui Refractory company has developed a method to prevent the reduction of Cr2O3 by CO during the sintering of dense chromium oxide brick. This innovative approach ensures that the chromium oxide bricks maintain properties. Moreover. it doesn’t degrade during the sintering process. KERUI has invested in two 168-meter-long tunnel kilns for sintering, which allows for the production of dense chromium oxide brick with excellent density and uniform quality.
To guarantee the density and precise dimensions of high chrome oxide brick, KERUI has upgraded its pressing machines. The new machinery ensures a strong and uniform compaction of the raw materials, resulting in high-density bricks with consistent dimensions. This improvement in the pressing process enhances the overall performance and durability of the high chrome oxide brick.
This product contains more than 90% chromium. It is mainly used in key parts of glass kilns, glass fiber or ceramic fiber kilns. Usually, customers use these high-quality refractory bricks in reinforced glass furnaces or soda-lime glass pool furnaces. In addition, this product is also suitable for lining other working furnaces with reduced atmospheres. For example, coal gasification furnaces, pressurized furnaces, metal smelting furnaces, petroleum processing furnaces and other industrial kilns with severe working environments.
Welcome to view more information about the application of refractory bricks on the homepage of Kerui Instagram.
As an original refractory brick manufactuer in China, Kerui Refractory can directly control the quality and price of chrome bricks. Moreover, Kerui refractory bricks have passed ISO, CE, SGS and other international certifications. If you need it, we can also provide TDS (technical data sheet) upon request. Moreover, Kerui employs advanced testing equipment and procedures to ensure that each chrome brick meets the highest quality standards. Therefore, customers can buy with confidence.
It’s worth noting that buying chromite bricks from Kerui can eliminate additional costs. Additionally, customers perfer Kerui refractory products because it’s more cost-competitive in the market. If you consider buying high chrome bricks in bulk, you’ll likely get a better price!
For long-term development, we sincerely recommend high chrome brick to you. Contact us now and you can get high quality products as well as superior service! Kerui is willing to provide a perfect solution for your kiln.