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High Chromium Oxide Bricks from China Suppliers - Erosion & Heat Resistant for Industrial Furnace Applications
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 with Cr₂O₃ content ≥93% can maintain long-term stable performance at temperatures up to 1800℃, making them suitable for the most demanding high-temperature industrial applications.
Q
What is the difference between High Chrome Brick and Medium Chrome Brick?
High Chrome Brick contains ≥93% Cr₂O₃ with a bulk density ≥4.25 g/cm³, offering superior chemical inertness and wear resistance. Medium Chrome Brick contains ≥70–80% Cr₂O₃ with higher cold crushing strength (≥120MPa), providing a cost-effective solution for moderately corrosive environments.
Q
Can chrome oxide bricks be used in both oxidizing and reducing atmospheres?
Yes. Chrome oxide bricks demonstrate stable performance across oxidizing, reducing, and neutral atmospheres, making them highly versatile for various complex industrial furnace working conditions.
Q
Which industries are chrome oxide bricks most commonly used in?
Chrome oxide bricks are widely used in metallurgy (steel ladles, electric arc furnaces), non-ferrous metallurgy (aluminum and copper smelting), the chemical industry (conversion and reactor furnaces), the glass and ceramic industry, and the building materials industry including cement kilns.
Q
How do chrome oxide bricks extend furnace service life?
Thanks to their dense internal structure and strong resistance to molten slag penetration and high-temperature abrasion, chrome oxide bricks significantly reduce lining wear. Their high mechanical strength (≥180MPa compressive strength) also prevents cracking and falling off under heavy loads and thermal stress.
Q
How can I get a customized quote for chrome oxide bricks?
You can fill out the contact form above with your project requirements including application type, operating temperature, and required specifications. Our technical team will review your inquiry and provide a tailored solution and competitive quote promptly.