+86-15527482889
Hot Products
0102030405
High Alumina Brick by China Suppliers - Durable Refractory Bricks from Leading Factory for Industrial Furnaces
Core Advantages
Why Choose Our High Alumina Brick
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
Technical Specifications
| 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
Industries We Serve
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
High Alumina Brick can withstand a maximum working temperature of up to 1790℃. This makes it one of the most heat-resistant refractory materials available, suitable for extreme high-temperature industrial applications such as steel furnaces, glass melting furnaces, and cement rotary kilns.
Our High Alumina Bricks are available in three primary grades: ≥75% Al₂O₃, ≥65% Al₂O₃, and ≥55% Al₂O₃. Higher alumina content generally provides superior heat resistance, corrosion resistance, and mechanical strength, allowing customers to select the most suitable grade based on their specific application requirements and budget.
High Alumina Bricks are widely used across multiple heavy industries including steel manufacturing (blast furnaces, converters, ladles), cement production (rotary kilns, preheaters), glass manufacturing (melting furnaces, regenerators), petrochemical processing (catalytic crackers, reformers), as well as waste incinerators, ceramic kilns, and non-ferrous metal smelting furnaces.
The high alumina (Al₂O₃) content in these bricks forms a dense, chemically stable crystalline structure that is highly resistant to attack from molten slag, acidic and alkaline media, and high-temperature chemical gases. The low apparent porosity (as low as ≤20%) further prevents penetration of corrosive substances, significantly extending service life in harsh industrial environments.
High Alumina Bricks are manufactured using high-pressure molding combined with high-temperature sintering processes. This production method ensures low porosity, high structural density, excellent load-bearing capacity, and superior thermal shock resistance — all of which contribute to reduced replacement frequency and lower long-term operational costs.
You can request a customized quote by filling out the contact form above with details about your project, including the intended application, required Al₂O₃ grade, quantity, and any specific dimensional or performance requirements. Our technical team will review your specifications and provide a tailored solution and competitive pricing as quickly as possible.