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China Suppliers of Chromium Oxide Bricks: Erosion & Heat Resistant Solutions from Factory for Industrial Furnaces
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
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.
High chrome bricks contain ≥93% Cr₂O₃, which provides superior chemical inertness and corrosion resistance. Medium chrome bricks are available in two grades: ≥80% and ≥70% Cr₂O₃, offering a cost-effective option for less extreme environments while still delivering excellent performance.
Chrome oxide bricks are widely used across multiple industries including metallurgy (ladle slag lines, electric arc furnaces), non-ferrous metallurgy (aluminum electrolysis cells, copper smelting furnaces), chemical industry (conversion furnaces, reactors), glass & ceramics (melting furnaces, sintering kilns), and building materials (cement kilns, ceramic roller kilns).
Our high chrome bricks achieve a cold crushing strength of ≥100 MPa, while medium chrome bricks reach ≥120 MPa. Additionally, room temperature compressive strength can reach ≥180 MPa, ensuring the bricks can withstand heavy mechanical loads and thermal stress without cracking or spalling.
Yes. Chrome oxide bricks exhibit stable performance in oxidizing, reducing, and neutral atmospheres. This wide atmosphere adaptability makes them highly versatile and compatible with a broad range of complex industrial furnace operating conditions.
Yes, we offer customized chrome oxide brick solutions tailored to your specific furnace geometry and operational requirements. Please contact us with your project details including dimensions, operating temperature, and application environment to receive an accurate quote and technical recommendation.