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Description of High Percentage Alumina Ceramic Bricks High Alumina Refractory Brick For Steelmaking Electric Furnaces
High alumina brick is a refractory material composed of over 48% alumina oxide, classified as an alumina-silicate. It is produced through the calcination and molding of bauxite or materials rich in AL2O3. Exhibiting exceptional thermal stability, it boasts a refractoriness exceeding 1770℃. With superior resistance to slag, it finds applications in lining steelmaking electric furnaces, glass kilns, and cement rotary kilns.
Features of High Percentage Alumina Ceramic Bricks High Alumina Refractory Brick for Steelmaking Electric Furnaces
1.Alumina Content > 48%
2.Exceptional Thermal Stability (>1770℃)
3.Superior Slag Resistance
4.Low Thermal Conductivity
5.Chemical Inertness
6.High Compressive Strength
7.Versatile Applications
8.Customizable Shapes and Sizes
9.Long Service Life
10.Consistent Performance
Applications of High Alumina Refractory Brick for Steelmaking Electric Furnaces:
Iron and Steel Industry
Cement Production
Glass Manufacturing
Petrochemical Industry
Incinerators
Power Plants
Foundries
Non-Ferrous Metals Industry
Aluminum Smelting
Chemical Processing Plants
Alumina Ceramic Bricks High Alumina Refractory Brick For Steelmaking Electric Furnaces Specification
Product Specification of High Alumina Refractory Brick | ||||||
Item | Properties | |||||
RS-80 | RS-75 | RS-65 | RS-55 | RS-48 | ||
Al2O3 (%) | 80 | ≥75 | ≥65 | ≥55 | ≥48 | |
Refractoriness (°C ) | ≥1790 | ≥1790 | ≥1790 | ≥1770 | ≥1750 | |
Bulk density (g/cm3) | 2.65 | 2.5 | 2.45 | 2.4 | 2.3 | |
Softening temperature under load (°C ) | 1530 | ≥1520 | ≥1500 | ≥1470 | ≥1420 | |
Linear changes on reheating (%) | 1500°CX2H | 0.1 | 0.1 | 0.1 | 0.1 | |
-0.4 | -0.4 | -0.4 | -0.4 | |||
1450°CX2H | 0.1 | |||||
-0.4 | ||||||
Apparent porosity (%) | 22 | ≤23 | ≤23 | ≤22 | ≤22 | |
Cold crushing strength (Mpa) | 55 | ≥50 | ≥45 | ≥40 | ≥35 | |
Application | steel furnace, glass furnace, sodium silicate furnace, ceramic
shuttle kiln, cement rotary kiln, blast furnace, electric furnace, blast furnace and reverberatory furnace. | |||||
