High Alumina Bricks are a premium refractory material designed to withstand extreme temperatures and harsh environments, making them an essential choice for industries requiring durability and longevity. Crafted from bauxite and other alumina-rich materials, these bricks undergo a meticulous production process involving high-temperature firing to enhance their structural integrity. The result is a robust product with superior thermal stability, low porosity, and remarkable resistance to chemical attack.
The exceptional properties of High Alumina Bricks can be quantified through various chemical and physical indicators. They typically exhibit an alumina content ranging from 50% to over 90%, with impressive refractoriness ratings (up to 1750°C) and a bulk density of approximately 2.5-3 g/cm³. Additional characteristics include excellent thermal shock resistance, minimal shrinkage upon heating, and outstanding mechanical strength at elevated temperatures. These attributes position High Alumina Bricks as the go-to solution for demanding applications in aluminum smelting furnaces, cement kilns, glass production lines, and many more industrial settings.
| Product name |
Three-level high alumina brick |
Secondary high alumina brick |
First grade high alumina brick |
Premium high alumina brick |
| index |
YY-55 |
YY-65 |
YY-75 |
YY-80 |
| Al2O3:≥ |
55 |
65 |
75 |
85 |
| Fe2O3:< |
2.6 |
2.5 |
2.5 |
2.0 |
| Bulk density:g/cm3 |
2.3 |
2.4 |
2.5 |
2.6 |
| Normal temperature compressive strength MPa |
50 |
60 |
70 |
80 |
| Load softening temperature ºC |
1420 |
1460 |
1510 |
1550 |
| RefractorinessºC |
1770 |
1770 |
1790 |
1790 |
| Apparent porosit5y< |
24 |
23 |
22 |
21 |
| Line rate of change |
-0.4 |
-0.4 |
-0.3 |
-.02 |
Main features of high alumina bricks
High melting point: The main component of high alumina bricks is alumina, and its melting point is as high as about 2050ºC, which makes high alumina bricks have excellent stability in high temperature environments.
Good wear resistance: High alumina bricks have high hardness and wear resistance, and can withstand wear and impact in high-temperature industrial production.
Excellent chemical stability: High alumina bricks have good resistance to chemical media such as acidic and alkaline, and are not prone to chemical reactions, which ensures their stability in high temperature environments.
Good thermal stability: High alumina bricks have a low thermal expansion coefficient and high thermal conductivity, can withstand rapid heating and cooling conditions, and are not prone to cracks.
Higher mechanical strength: High alumina bricks have high compressive strength and flexural strength, which can meet the load-bearing requirements in high-temperature industrial production.
Longer service life: Due to the above advantages of high alumina bricks, they have a longer service life in high-temperature industrial production and reduce production costs.
Advantages of high alumina bricks:
High temperature resistance: The high melting point of high alumina bricks makes it show excellent stability in high temperature environment and can withstand thermal stress in high temperature industrial production.
Wear resistance: The hardness and wear resistance of high alumina bricks make it able to withstand wear and impact in high temperature industrial production, reducing the maintenance and replacement frequency of equipment.
Chemical corrosion resistance: High alumina bricks have good resistance to acidic, alkaline and other chemical media, and are not prone to chemical reactions, ensuring their stability in high temperature environments.
Resistant to heat shock: High alumina bricks have a low thermal expansion coefficient and high thermal conductivity, can withstand rapid heating and cooling conditions, and are not prone to cracks.
Main uses of high alumina bricks:
Metallurgical industry
In metallurgical equipment such as blast furnaces, hot blast furnaces, and steelmaking furnaces, high alumina bricks are used as lining materials with excellent corrosion resistance, thermal shock resistance, and high temperature strength. It can effectively resist the erosion of molten metal and slag at high temperatures, ensuring the stability and service life of the lining.
Chemical industry
In fertilizer, petrochemical, chemical and other industries, high alumina bricks can be used for linings, furnace tubes, reactors and other equipment. It can withstand the erosion of high temperature, high pressure, corrosive gases and molten materials to ensure the safe operation of the equipment.
Building materials industry
The application of high alumina bricks in the building materials industry is mainly reflected in equipment such as cement clinker production lines and ceramic tunnel kilns. It can withstand mechanical stress and chemical erosion at high temperatures, and improve the durability and reliability of the equipment.
Ceramic industry
In the ceramic industry, high alumina bricks can be used for equipment such as tunnel kilns, shuttle kilns, and roller kilns. It can withstand the erosion of high temperature, high pressure, corrosive gases and molten materials to ensure the quality of ceramic products.
Other fields
High alumina bricks are also widely used in aviation, aerospace, nuclear industry and other fields. In the high temperature environment of these fields, high alumina bricks can play an excellent role and contribute to the development of my country's high temperature industry.
Product Packing and Delivery:
Wooden pallet size:930*930mm,Load weight of each pallet:1.5-2.0 Tons.
20 Foot Container can be loaded 25Tons,40 Foot Container can be loaded 28Tons.
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