High-Alumina Brick Description
The High-Alumina brick has high sintering temperature, high refractoriness under load, high compressive strength, high-temperature flexural strength, and low thermal expansion efficiency.
High Alumina Bricks are produced with selected bauxite chamotte as the main raw material, fired at 1450-1470 °C by the advanced process with strict quality control.
High-Alumina Brick Applications
High-Alumina Firebricks are mainly used in the construction of various industrial furnaces, such as masonry iron-making furnaces, steelmaking furnaces, coke ovens, glass furnaces, cement kilns, steam boilers, various heat treatment furnaces, heating furnaces, etc., as well as other high-temperature furnaces.
Different types of refractory bricks should not be mixed. When firebricks are built, the same type of refractory clay as refractory bricks should be used as cement.
High-Alumina Brick Specifications
|
type
|
HAB-75
|
HAB-65
|
HAB-55
|
|
Al2O3≥ %
|
75
|
65
|
55
|
|
Fe2O3＜ %
|
2.5
|
2.4
|
2.6
|
|
bulk density g/cm³
|
2.5
|
2.5
|
2.3
|
|
comprehension stress Mpa
|
70
|
60
|
50
|
|
refractoriness under load °C
|
1510
|
1460
|
1420
|
|
refractory temperature °C
|
1790
|
1770
|
1770
|
|
porosity %
|
22
|
23
|
24
|
|
PLC %
|
-0.3
|
-0.4
|
-0.4
|
High-Alumina Brick Packaging
Our high-Alumina bricks are carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.
High-Alumina Brick FAQ
What are the advantages of High-Alumina Bricks compared to Fireclay Bricks?
High-Alumina Bricks have higher refractoriness, better resistance to slag attack, and improved mechanical strength at elevated temperatures.
How should High-Alumina Bricks be stored before use?
High-Alumina Bricks should be stored in a dry and ventilated environment to avoid moisture absorption, which can affect their performance.
What type of bonding material is used for High-Alumina Bricks?
High-temperature cement or mortar is typically used for bonding High-Alumina Bricks.
