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High Chromium Oxide Bricks from China Factory: Erosion & Heat Resistant Solutions by Trusted Suppliers
Core Advantages
High Purity & Chemical Inertness
With strong chemical stability, not easy to react with molten slag, metal melt and corrosive gases, suitable for extreme corrosive working conditions.
Excellent High-Temperature Stability
Long-term stable performance at ≤1800℃, low thermal expansion coefficient, no obvious deformation or softening under high-temperature load, ensuring furnace structural integrity.
Superior Erosion & Wear Resistance
Dense internal structure, strong resistance to molten slag penetration and high-temperature abrasion, effectively reducing lining wear and extending service life.
High Mechanical Strength
Room temperature compressive strength ≥180MPa, good flexural strength, can withstand heavy loads and thermal stress in industrial furnaces, not easy to crack or fall off.
Wide Atmosphere Adaptability
Stable performance in oxidizing, reducing and neutral atmospheres, compatible with various complex industrial furnace working conditions, strong versatility.
Product Parameters
| Item | High Chrome Brick | Medium Chrome Brick | |
| Cr₂O₃ % | ≥93 | ≥80 | ≥70 |
| Apparent Porosity % | ≤16 | ≤16 | ≤16 |
| Bulk Density g/cm³ | ≥4.25 | ≥4.10 | ≥3.70 |
| Cold Crushing Strength MPa | ≥100 | ≥120 | ≥120 |
| Refractoriness Under Load ℃ (0.2MPa, 0.6%) | ≥1700 | ≥1700 | ≥1700 |
Detailed Application Scenarios
Our high chromium oxide bricks are specially designed for extreme high-temperature and strong corrosive industrial environments, providing reliable lining solutions for the following key industries:
1
Metallurgical Industry
◎ Ladle slag line, tundish nozzle, electric arc furnace bottom and side wall, converter mouth and other high-corrosion parts.
2
Non-Ferrous Metallurgy Industry
◎ Aluminum electrolysis cell lining, copper smelting furnace, zinc leaching furnace, and other parts in contact with molten non-ferrous metals.
3
Chemical Industry
◎ Sulfuric acid plant conversion furnace, chemical reactor, phosphate fertilizer furnace, and other high-corrosion high-temperature equipment.
4
Glass & Ceramic Industry
◎ Glass melting furnace throat, regenerator, ceramic sintering kiln high-temperature zone, and other corrosion-prone parts.
5
Building Materials Industry
◎ Ceramic roller kiln high-temperature zone, brick kiln lining, and refractory lining of cement kiln preheater.
Conclusion
Contact us now for a quote and experience the difference of working with the best in the business.
Frequently Asked Questions
What is the maximum operating temperature for high chrome bricks?
High chrome bricks can maintain long-term stable performance at temperatures up to 1800℃, making them suitable for the most demanding high-temperature industrial furnace applications including electric arc furnaces and glass melting furnaces.
What is the difference between High Chrome Brick and Medium Chrome Brick?
High Chrome Brick contains ≥93% Cr₂O₃ with a bulk density of ≥4.25 g/cm³, offering superior chemical inertness and corrosion resistance. Medium Chrome Brick contains ≥70–80% Cr₂O₃ and provides higher cold crushing strength (≥120 MPa), making it a cost-effective choice for moderately corrosive environments.
Are chrome oxide bricks suitable for use in reducing atmospheres?
Yes. Chrome oxide bricks exhibit stable performance across oxidizing, reducing, and neutral atmospheres. This wide atmosphere adaptability makes them highly versatile for various complex industrial furnace working conditions.
Which industries most commonly use high chrome oxide bricks?
High chrome oxide bricks are widely used across the metallurgical industry (ladle slag lines, electric arc furnaces), non-ferrous metallurgy (aluminum electrolysis cells, copper smelting furnaces), chemical industry (sulfuric acid conversion furnaces), glass and ceramic industry (glass melting furnace throats), and building materials industry (ceramic roller kilns, cement kiln preheaters).
How does the dense structure of chrome bricks extend service life?
The dense internal microstructure of chrome oxide bricks significantly reduces porosity, preventing molten slag from penetrating the lining. This resistance to slag infiltration and high-temperature abrasion minimizes wear and structural degradation, effectively extending the overall service life of the furnace lining.
Can custom sizes and specifications be manufactured?
Yes. We offer customized chrome oxide brick solutions tailored to specific furnace designs, operating temperatures, and chemical environments. Please contact us with your project requirements and our technical team will provide a detailed recommendation and quotation.