Industrial Magnesia Brick | High Temperature Basic Refractory Manufacturer
Increase the reliability and service life of your industrial furnace with our premium Magnesium Brick solutions. Manufactured from high-quality magnesia, our bricks deliver exceptional resistance to high temperatures, alkaline slag, abrasion and thermal shock, making them ideal for the most demanding kiln and furnace applications.From cement rotary kilns and lime kilns to steel plants and non-ferrous metallurgical furnaces, our refractory experts provide customized lining recommendations based on your operating conditions. Combined with strict quality control, fast delivery and professional technical support, our magnesia bricks help reduce maintenance frequency, improve production efficiency and lower the total cost of ownership.
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![Sintered Magnesia Brick]()
Sintered Magnesia BrickSintered Magnesia Brick is a alkaline refractory material primarily made from sintered magnesia (magnesium oxide, MgO). It is produced by using sintered magnesia as the primary raw material,...view more -
![Fused Magnesia Brick]()
Fused Magnesia BrickFused Magnesia Brick is a high-quality basic refractory material made primarily from high-purity fused magnesia. They exhibit excellent high-temperature resistance, corrosion resistance, and...view more -
![Magnesia-carbon Bricks]()
Magnesia-carbon BricksMagnesia carbon bricks are high-performance refractory materials primarily composed of magnesium oxide (MgO) with carbon materials (such as graphite) added as a binder. They are widely used in...view more -
![Magnesia-chrome Bricks]()
Magnesia-chrome BricksMagnesia chrome bricks are crucial alkaline refractory material widely used in high-temperature industrial sectors like metallurgy, construction materials, and chemicals. They're primarily made...view more -
![Magnesia-alumina Bricks]()
Magnesia-alumina BricksMagnesia alumina bricks are refractory materials primarily made from magnesite (mainly composed of magnesium oxide, MgO) and bauxite (mainly composed of aluminum oxide, Al₂O₃). They are widely...view more
Why Choose Us
Quality Assurance
Our company obtained ISO9001 International Quality Management System certification from the China Quality Certification Centre (CQC) in 2006.
After-Sale Service
Professional and thoughtful after -sales team, let you worry about us after -sales Intimate service, strong after -sales team support.
Custom-Engineered Solutions
By pioneering new energy-saving refractory materials and innovating kiln lining designs, we dedicate ourselves to helping clients achieve energy conservation and emission reduction goals.
Production Market
We have established long-term business cooperation and joint product R&D projects with leading design institutes, including:Dalian Design & Research Institute of ACRE (Coking & Refractory Engineering Consulting Corporation, MCC)),Shandong Metallurgical Design Institute Co., Ltd,Changsha Research Institute of Mining and Metallurgy (CRIMM), Minmetals.
Advantages of Magnesium Brick
High Melting Point
Magnesia bricks can withstand extremely high temperatures, making them ideal for industries involving intense heat, such as steel manufacturing.
Corrosion Resistance
They are highly resistant to chemical corrosion, especially by basic slag, which is crucial in the production of steel and cement.
Thermal Insulation
Magnesia bricks possess excellent thermal insulation properties, ensuring energy efficiency in high-temperature processes.
Low Thermal Expansion
Their low thermal expansion rate minimizes the risk of cracking and structural damage under extreme heat.
Technical Data
|
Specification |
Unit |
Low-Carbon Magnesia Carbon Bricks |
Medium- Carbon Magnesia Carbon Bricks |
High- Carbon Magnesia Carbon Bricks |
|
MgO |
% |
85-95 |
80-90 |
75-85 |
|
C |
% |
5-10 |
10-15 |
15-20 |
|
Apparent Porosity |
% |
≤4 |
≤5 |
≤6 |
|
Bulk Density |
g/cm³ |
2.95-3.1 |
2.9-3 |
2.85-2.95 |
|
Cold Crushing Strength |
MPa |
≥50 |
≥40 |
≥30 |
|
Hot Modulus of Rupture (1400°C) |
MPa |
≥8 |
≥7 |
≥6 |
|
Refractoriness Under Load |
°C |
≥1700 |
≥1700 |
≥1700 |
|
Thermal Shock Resistance(1100℃ water quenching) |
Cycles |
≥15 |
≥20 |
≥25 |
|
Thermal Conductivity (1000°C) |
W/(m·K) |
5-8 |
8-12 |
12-20 |
|
Oxidation Resistance |
- |
Good |
Very good |
Excellent |
Processing of Raw Materials
Uses magnesia as the raw material for making magnesia refractory bricks. In order to improve the slag resistance and permeability of magnesia in bricks, workers grind high-quality magnesia into fine powder and add it to the automatic batching machine when processing raw materials.
Molding Process
Magnesia bricks have less water content. With the increase of molding pressure, the strength, density and load softening temperature of magnesia bricks after firing will also increase. Meanwhile, unburnt magnesia in bricks adds chemical binder to form dense structure.
Drying Process
Magnesia bricks are dried to remove excess water in the binder to improve the strength of the brick embryo. At the same time, it should be noted that the drying temperature of magnesium bricks is low. Higher temperatures may accelerate the hydration of magnesia, which is not conducive to water removal. Therefore, it’s worth noting that unburnt brick uses medium temperature to dry extra water.
Sintering Process
Firing is to enhance the density of magnesite bricks. In addition, the firing temperature increases with the increase in magnesium content. Generally, the firing temperature of magnesia bricks is about 1500°C. Meanwhile, the PLC control room can control the firing temperature and the position of the kiln car in real-time to ensure that the temperature in the kiln is stable. Therefore, the quality is relatively stable.
Packaging and Shipping Process
We requirements for the packaging of finished magnesia bricks. In order to ensure the best customer experience, magnesium bricks must be stored in a dry and ventilated place. Additionally, the gap between basic refractory bricks must be uniform and firm. Then the finished magnesite bricks will be strictly packed and sent to the customer’s location.
The main raw material of magnesia bricks is magnesia (MgO), with a content as high as 91%. Meanwhile, it has high refractoriness at 2000℃ (3632℉) and strong resistance to alkaline corrosion.
Applications of Magnesium Brick
Steel Industry
One of the most prominent applications of magnesia bricks is in the steel industry, particularly in the construction of steelmaking furnaces and ladles. The refractory lining of these furnaces faces extreme conditions, including high temperatures and chemical reactions. Magnesia bricks' resistance to both heat and basic slag corrosion makes them an ideal choice for these critical areas.
Cement Industry
The cement industry relies on magnesia bricks in the construction of rotary kilns, which are essential for clinker production. These kilns operate at temperatures exceeding 1,400°C, and magnesia bricks excel in such harsh conditions. Their ability to withstand high temperatures and resist the corrosive effects of alkaline materials is vital for prolonged kiln life and cost-effective cement production.
Glass Industry
In the glass industry, magnesia bricks are used to line regenerators and glass melting furnaces. Glass production involves extremely high temperatures, and these bricks provide both excellent heat resistance and minimal thermal expansion, ensuring the stability of the furnace structure and prolonged service life.
Non-Ferrous Metallurgy
Magnesia bricks also find applications in non-ferrous metallurgy, such as in the construction of copper and nickel smelting furnaces. These furnaces operate at elevated temperatures, and the resistance to corrosion and thermal stress exhibited by magnesia bricks is indispensable for their performance and longevity.
Packaging
》Packed on wooden pallets with moisture-proof film or wooden box to prevent damage.
》Keep in dry, ventilated areas.
FAQ
As one of the most professional magnesium brick manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to buy magnesium brick at competitive price from our factory.
Fused Magnesia Brick, Magnesia-alumina Bricks, Magnesia-chrome Bricks
