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High-Quality Chromium Oxide Bricks from China Suppliers - Erosion & Heat Resistant for Industrial Furnace Factory
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 (≥80%) | Medium Chrome Brick (≥70%) |
|---|---|---|---|
| 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
Q
What is the maximum operating temperature for high chrome bricks?
High chrome bricks can maintain long-term stable performance at temperatures up to 1800℃. Their low thermal expansion coefficient ensures no obvious deformation or softening under high-temperature load, making them ideal for the most demanding furnace environments.
Q
What is the difference between High Chrome Brick and Medium Chrome Brick?
The primary difference lies in the Cr₂O₃ content. High Chrome Brick contains ≥93% Cr₂O₃ with a bulk density of ≥4.25 g/cm³, offering superior chemical resistance and density. Medium Chrome Bricks contain ≥80% or ≥70% Cr₂O₃ respectively, providing excellent performance at a more cost-effective level for less extreme conditions.
Q
Are chrome oxide bricks suitable for both oxidizing and reducing atmospheres?
Yes. Chrome oxide bricks exhibit stable performance across oxidizing, reducing, and neutral atmospheres. This wide atmosphere adaptability makes them highly versatile and compatible with various complex industrial furnace working conditions, including electric arc furnaces, chemical reactors, and glass melting furnaces.
Q
Which industries are chrome oxide refractory bricks most commonly used in?
Chrome oxide refractory 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 (sulfuric acid conversion furnaces, chemical reactors), glass and ceramic manufacturing, and building materials production (cement kilns, ceramic roller kilns).
Q
What is the cold crushing strength of your chrome oxide bricks?
Our Medium Chrome Bricks (both ≥80% and ≥70% grades) achieve a cold crushing strength of ≥120 MPa, while High Chrome Bricks reach ≥100 MPa. Combined with good flexural strength, these bricks can withstand heavy mechanical loads and thermal stress without cracking or spalling.
Q
How can I get a customized quote for chrome oxide bricks?
You can contact us directly by filling out the inquiry form above with your project requirements, including application type, required dimensions, operating temperature, and atmosphere conditions. Our technical team will review your needs and provide a tailored solution and competitive quote as quickly as possible.