High Alumina Brick
High-alumina bricks are made primarily from high-alumina bauxite clinker, with an Al₂O₃ content of 48%-90%. As one of the most widely used fire bricks, Ruitai Lianxin’s high-alumina bricks are sintered at temperatures exceeding 1500℃, forming a dense structure with excellent high-temperature stability, corrosion resistance, and mechanical strength. As a professional refractory brick supplier, we can customize high-alumina refractory bricks according to your specific needs and provide wholesale support to meet large-volume high-alumina brick orders.
Characteristics of High Alumina Fire Bricks
Exceptional High-Temperature Stability
Ruitai Lianxin’s high-alumina bricks can withstand extreme temperatures up to 1790℃. They maintain structural integrity even under prolonged high-temperature environments such as steelmaking and cement rotary kilns.
Superior Anti-Stripping Performance
Ruitai Lianxin has added special anti-stripping additives to its high-alumina bricks and optimized the production process, enabling them to withstand frequent temperature changes without cracking or peeling.
Excellent Corrosion and Abrasion Resistance
The main mineral components are corundum and mullite phases. It exhibits excellent resistance to abrasion from acidic and weakly alkaline slags, high-temperature dust, and molten materials.
High Mechanical Strength and High Density
Our high-alumina bricks have a dense structure with a cold-compression strength between 40 and 70 MPa, providing strong load-bearing capacity and preventing cracking or peeling, ensuring stable operation of high-temperature equipment.
Wide Range of Applications of High Alumina Bricks
High-alumina fire bricks, as high-performance refractory fire bricks, are widely used in various high-temperature industrial fields, and their application varies in specific kilns and equipment.
Refractory Bricks For Non-Ferrous Smelting
Suitable for various non-ferrous metal smelting kilns and their key components. In the smelting of copper, zinc, lead, and other non-ferrous metals, refractory bricks are used for the lining of blast furnaces, reverberatory furnaces, converters, and electric furnaces, capable of withstanding the working environment of molten non-ferrous metals and corrosive slag.
Cement Industry
Primarily used for the lining of cement rotary kilns (especially the combustion zone, transition zone, and cooling zone), preheaters, decomposition furnaces, and clinker coolers.
Glass Furnace Refractory
High-alumina refractory bricks are used in the accumulators, molten pool walls, and throats of glass melting furnaces, capable of withstanding the erosion of alkaline atmospheres, high-temperature molten glass, and dust abrasion. Ruitai Lianxin can customize high-alumina refractory fire bricks directly from the factory according to the specific dimensions of your glass melting furnace.
Steel Industry
High-alumina refractory bricks are widely used in key components of various steelmaking kilns and equipment. Examples include blast furnace linings, patterned bricks and linings for hot blast stoves, ladle linings, electric arc furnace roofs and sidewalls, tundish linings, and the nozzle area of continuous casting machines. As a professional refractory brick manufacturer, we provide wholesale refractory fire bricks to the steel industry to meet the needs of different steelmaking kilns.
Classification of High Alumina Bricks
As a premium refractory brick manufacturer, we produce high-alumina bricks in grades I, II, III, and anti-spasting, ensuring that each type of refractory fire brick can perfectly adapt to different high-temperature working conditions.
With an Al₂O₃ content of 65%-75%, it is a high-performance refractory brick. It has excellent high-temperature resistance (refractory temperature up to 1770℃), strong corrosion resistance and high mechanical strength, and is mainly used in harsh conditions such as steel ladles, electric arc furnace roofs, and glass melting furnaces.
With an alumina content of 55%-65%, these refractory bricks offer a balance of performance and cost, exhibiting excellent high-temperature stability and wear resistance. They are suitable for medium-temperature, medium-corrosive environments such as the transition zone of cement rotary kilns and hot blast stoves. Our refractory brick factory can adjust specific parameters according to customer needs to meet diverse application requirements.
With an alumina content of 48%-55%, it is an economical choice for refractory bricks. It possesses basic high-temperature resistance and mechanical strength, making it suitable for low-temperature, low-corrosion environments such as boiler combustion chambers and flue linings.
Based on ordinary high-alumina bricks, special additives are added and the production process is optimized, giving them excellent thermal shock resistance and anti-spasting properties. They are not prone to cracking or detachment even under frequent temperature changes, and are widely used in high-temperature equipment with large temperature fluctuations, such as blast furnaces and incinerators. As a professional refractory brick manufacturer, we possess mature anti-spasting high-alumina brick production technology, providing reliable refractory brick products to customers worldwide.
Why Choose Ruitai Lianxin High-Alumina Bricks?
Factory Direct Sales
We supply refractory bricks directly from the factory at highly competitive wholesale prices, exporting globally.
Professional Production
Advanced production equipment and a rigorous quality control system ensure that every batch of refractory bricks meets international standards.
Customized Solutions
As a professional refractory brick manufacturer, we can customize sizes, specifications, and performance according to your specific needs.
Global Export Experience
We have extensive experience in exporting refractory bricks, ensuring timely delivery, customs clearance, and professional after-sales service.
Price of High Alumina Refractory Bricks
The main factors influencing the price of Ruitai Lianxin high-alumina refractory bricks include quantity and type. Ruitai Lianxin’s high-alumina bricks are key refractory materials for kiln construction. The Ruitai Lianxin team will provide different pricing plans based on the customer’s specific needs. The price varies depending on the quantity and model of the selected high-alumina refractory bricks. Customers ordering larger quantities of the same model of refractory bricks can enjoy greater discounts.
Additionally, we can also provide other refractory brick options based on your kiln’s operating conditions.
Ruitai Lianxin Refractory Brick Manufacturing Process
As a high-quality refractory bricks supplier, Ruitai Lianxin refractory brick company has always adhered to strict standardized production processes to ensure that every refractory brick has consistent quality and reliable performance.
High Alumina Brick Parameters
High Alumina Brick
| LX-LZ-75 | LX-LZ-65 | LX-LZ-55 | LX-GZ-65 | LX-GZ-55 | LX-RL-65 | LX-RL-55 | ||
| Physical Property: | ||||||||
| Bulk Density(g/cm3) | ≥ | 2.65 | 2.6 | 2.35 | ||||
| Cold Crushing Strength(MPa) | ≥ | 50 | 45 | 40 | 58 | 49 | 49 | 44 |
| Refractoriness Under Load(T0.6℃) | ≥ | 1520 | 1500 | 1450 | 1500 | 1480 | 1500 | 1470 |
| Apparent Porosity(%) | ≤ | 23 | 23 | 22 | 19 | 19 | 24 | 24 |
| Refractoriness (℃) | ≥ | 1790 | 1790 | 1770 | 1790 | 1770 | 1780 | 1760 |
| Reheat linear change%(1500℃,2h) | +0.1-0.4 | +0.1-0.4 | +0.1-0.4 | 0 | -0.2 | +0.1-0.4 | +0.1-0.4 | |
| Chemical Analysis(%) | ||||||||
| Al2O3 | ≥ | 75 | 65 | 55 | 65 | 55 | 65 | 55 |
| Fe2O3 | ≤ | – | – | – | 2.0 | 2.0 | – | – |
| Note:All data are average values obtained at samples for laboratory purposes. | ||||||||
Ruitai Lianxin Refractory Brick Customer Case
As one of China’s leading professional refractory material manufacturers, we focus on exporting high-standard refractory bricks and providing factory-direct refractory bricks to industrial clients worldwide. Our products and customized solutions are widely praised globally, and we have stable, long-term partners in many countries, including Uzbekistan, Syria, and Pakistan. Ruitai Lianxin will continue to pursue mutual benefit and win-win results through in-depth cooperation with global refractory brick customers.
Indian | High Alumina Brick | Ladle Refractory Fire Bricks
Pakistan | Corundum Refractory Fire Brick | Rotary Kiln Lining
Indian Customers | High Alumina Refractory Brick | Cement Kiln
Uzbekistan | Magnesium Aluminum Chromium Spinel Brick | Rotary Kiln
Syria | Refractory Cement | Blast Furnace Refractory Materials
Russia | Magnesium Chrome Refractory Brick | Cement Kiln
Cooperation Partners
Contact Us
As a professional refractory brick manufacturer, supplier, and factory, we offer high-quality factory-direct refractory bricks and wholesale services, and can customize kiln solutions to meet your needs. Contact us now, and our team will reach out to you as soon as possible to provide you with the best factory quote.