+86-15527482889
Hot Products
0102030405
High Alumina Brick for Industrial Furnaces - Quality Refractory from China Suppliers & Factory
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℃ x 2h) | ±0.1/-0.3 | ±0.1/-0.4 | ±0.2/-0.5 |
| MPa Cold Crushing Strength | ≥75 | ≥65 | ≥55 |
| ℃ Refractoriness | ≥1790 | ≥1770 | ≥1770 |
| ℃ (0.2MPa, 0.6%) Refractoriness Under Load | ≥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 (FAQ)
What is the maximum working temperature of High Alumina Bricks?
High Alumina Bricks feature exceptional heat resistance with a maximum working temperature of up to 1790℃, maintaining structural integrity under extreme high-temperature industrial conditions.
How does the alumina (Al₂O₃) content affect performance?
A higher Al₂O₃ content (ranging from ≥55% up to ≥75%) enhances the brick's resistance to molten slag, chemical media, and mechanical abrasion, while increasing its refractoriness under load.
What are the main applications of these bricks in the steel industry?
In the steel industry, they are widely used for the linings of blast furnaces, converters, electric furnaces, ladles, tapping troughs, and slag channels to resist erosion from molten steel and slag.
Why do High Alumina Bricks offer a cost-effective solution?
Due to their high structural density, low apparent porosity, and high thermal shock resistance, they have a longer service life and lower maintenance needs, reducing overall operational costs.
Can these bricks be used in cement and petrochemical plants?
Yes. They are ideal for rotary kilns and preheaters in the cement industry to resist alkaline gases, as well as catalytic crackers and reformers in the petrochemical industry to resist high-temperature oil gas and chemical corrosion.