High Alumina Refractories
Premium refractory materials with superior thermal performance and exceptional resistance to extreme temperatures
Superior High-Temperature Performance
High alumina refractories contain 45-99% alumina content, offering significantly enhanced thermal and mechanical properties compared to standard refractories. These materials excel in the most demanding high-temperature industrial applications.
Our high alumina refractories are engineered to withstand temperatures exceeding 1800°C while maintaining structural integrity, chemical resistance, and dimensional stability under extreme thermal cycling conditions.
Material Properties
Thermal Properties
- Service temp: 1600-1850°C
- Excellent thermal shock resistance
- Low thermal conductivity
- Minimal thermal expansion
Mechanical Properties
- High compressive strength
- Excellent load-bearing capacity
- Superior abrasion resistance
- Maintains strength at high temps
Chemical Properties
- Excellent slag resistance
- Resistant to acidic environments
- Low porosity options available
- Minimal contamination risk
Alumina Content Grades
45-60% Alumina
Entry-level high alumina grade offering improved performance over standard fireclay refractories for moderate temperature applications.
- Service temp up to 1500°C
- Cost-effective solution
- General industrial furnaces
60-75% Alumina
Medium high alumina grade providing excellent balance of performance and cost for demanding industrial applications.
- Service temp up to 1650°C
- Steel and foundry applications
- Enhanced thermal shock resistance
75-85% Alumina
High-performance grade for critical applications requiring superior thermal and chemical resistance in extreme environments.
- Service temp up to 1750°C
- Petrochemical and glass industries
- Excellent slag resistance
85-99% Alumina
Ultra-high alumina grade delivering maximum performance for the most demanding high-temperature applications and specialized processes.
- Service temp up to 1850°C
- Advanced ceramics and electronics
- Maximum purity and performance
Applications
Steel Industry
Ladle linings, tundish linings, and continuous casting
Glass Manufacturing
Glass tank crowns, regenerators, and melting furnaces
Petrochemical
Reformer linings, cracking furnaces, and reactor vessels
Cement Production
Rotary kiln linings and preheater systems
Non-Ferrous Metals
Aluminum, copper, and zinc smelting furnaces
Ceramic Industry
Kiln furniture, setters, and firing supports
Power Generation
Boiler linings and combustion chambers
Incineration
Waste-to-energy plants and hazardous waste treatment
Need High Alumina Refractories?
Contact our refractory specialists to discuss your high-temperature requirements and find the optimal alumina grade