+86-15527482889
Hot Products
0102030405
High Alumina Brick for Industrial Furnaces - China Suppliers & Factory with High Heat Resistance and Durability
Core Advantages
Exceptional Heat Resistance
With a maximum working temperature of 1790℃ and low thermal conductivity, it effectively insulates heat and maintains structural integrity under extreme high-temperature conditions, avoiding deformation or cracking.
Strong Corrosion & Abrasion Resistance
High alumina content enhances resistance to molten slag, acid-alkali media, and mechanical abrasion, extending service life in harsh industrial environments.
High Structural Density
Produced by high-pressure molding and high-temperature sintering, it has low porosity, strong load-bearing capacity, and good thermal shock resistance, reducing replacement frequency.
Cost-Effective Solution
Long service life and low maintenance requirements lower overall operational costs, providing high cost performance for large-scale industrial projects.
Product Parameters
| Item | High Alumina Brick | ||
| Al₂O₃ % | ≥75 | ≥65 | ≥55 |
| Fe₂O₃ % | ≤2.0 | ≤2.30 | ≤2.30 |
| Apparent Porosity % | ≤23 | ≤22 | ≤20 |
| Permanent Linear Change % 1500℃ × 2h |
±0.1/−0.3 | ±0.1/−0.4 | ±0.2/−0.5 |
| Cold Crushing Strength MPa | ≥75 | ≥65 | ≥55 |
| Refractoriness ℃ | ≥1790 | ≥1770 | ≥1770 |
| Refractoriness Under Load ℃ (0.2MPa, 0.6%) |
≥1520 | ≥1500 | ≥1470 |
Detailed Application Scenarios
1
Steel Industry
◎Widely used in blast furnaces, converters, electric furnaces, and ladles. Suitable for linings of tapping troughs, slag channels, and furnace tops, resisting molten steel and slag erosion, ensuring stable production of steelmaking equipment.
2
Cement Industry
◎Applied to linings of rotary kilns, preheaters, and cement clinker coolers. Withstands high temperature and alkaline gas corrosion, improving the service life of cement production equipment and reducing downtime.
3
Glass Industry
◎Used in glass melting furnaces, regenerators, and flue linings. Resists high-temperature glass liquid erosion and thermal shock, maintaining furnace tightness and ensuring consistent glass quality.
4
Petrochemical Industry
◎Suitable for linings of catalytic crackers, reformers, and hydrogenation furnaces. Resists high-temperature oil gas and chemical media corrosion, ensuring safe and efficient operation of petrochemical equipment.
5
Other Industries
◎Also applicable to waste incinerators, ceramic kilns, and non-ferrous metal smelting furnaces, providing reliable refractory solutions for various high-temperature industrial scenarios.
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 working temperature of High Alumina Brick?
High Alumina Brick can withstand a maximum working temperature of up to 1790℃ (for Grade ≥75% Al₂O₃), making it highly suitable for extreme high-temperature industrial applications such as steelmaking furnaces, glass melting furnaces, and cement rotary kilns.
Q
What are the main grades of High Alumina Brick available?
High Alumina Bricks are typically available in three primary grades based on Al₂O₃ content: ≥75%, ≥65%, and ≥55%. Each grade offers different levels of refractoriness, cold crushing strength, and load-bearing performance to suit various industrial requirements.
Q
Which industries are High Alumina Bricks most commonly used in?
High Alumina Bricks are widely used across multiple industries, including the steel industry (blast furnaces, converters, ladles), cement industry (rotary kilns, preheaters), glass industry (melting furnaces, regenerators), petrochemical industry (catalytic crackers, reformers), as well as waste incinerators, ceramic kilns, and non-ferrous metal smelting furnaces.
Q
How does High Alumina Brick resist corrosion and abrasion?
The high alumina content in the brick significantly enhances its chemical stability, providing strong resistance to molten slag, acid-alkali media, and mechanical abrasion. This makes it an ideal choice for linings exposed to aggressive chemical environments and physical wear in industrial operations.
Q
What manufacturing process is used to produce High Alumina Bricks?
High Alumina Bricks are manufactured using high-pressure molding combined with high-temperature sintering. This process results in a dense microstructure with low porosity, strong load-bearing capacity, and excellent thermal shock resistance, which collectively reduce the frequency of replacement and lower maintenance costs.
Q
How can I get a quote or request more technical information?
You can contact us directly by filling out the inquiry form above with your project details, including required brick grade, quantity, and application scenario. Our technical team will respond promptly with a customized quote and product recommendations tailored to your specific needs.