High-purity Magnesium Oxide Bricks Stone for High-temperature Industrial Environment

High-purity Magnesium Oxide Bricks Stone for High-temperature Industrial Environment

Product Description

We offer a full range of standard bricks, custom-shaped bricks, and customized formulation services. We implement strict quality control over product density, porosity, and chemical composition to ensure long-term stable performance. Whether you need furnace linings for steelmaking converters, cement rotary kilns, or high-purity refractory materials for lithium battery sintering kilns, our magnesia bricks can achieve stable, durable, and cost-effective operation under extreme conditions such as high temperature, high mechanical stress, and strong corrosion.

Product Core Advantages

1. Ultra-high Refractory Performance: the refractoriness can reach up to 2800℃, and the melting point of pure magnesia is 2800℃. It is the best-performing type of alkaline refractory material, capable of stable operation in high-temperature environments above 2000℃ for extended periods.

2. Excellent Resistance to Alkali Erosion:made of highly alkaline material, it exhibits extremely strong resistance to alkaline slag, molten alkali, and alkali salts, making it the preferred refractory material for all alkaline conditions.

3. Outstanding High-Temperature Stability:volumetrically stable at high temperatures, with no shrinkage, expansion, or cracking. Excellent thermal shock stability; it does not crack or peel under sudden temperature changes.

4. High Mechanical Strength:dense magnesia bricks have a compressive strength of up to 150MPa at room temperature. They are wear-resistant and impact-resistant, capable of withstanding furnace structural loads and material erosion.

5. Adjustable Thermal Insulation Performance:lightweight insulating magnesia bricks have a thermal conductivity as low as 0.3~0.5 W/(m²). • **Excellent thermal insulation performance (K), significantly reducing kiln energy consumption and improving thermal efficiency;**

6. High purity and low impurities:high-purity magnesia bricks have extremely low impurity content, with no heavy metals or harmful leaching, perfectly suited for high-cleanliness production environments such as lithium batteries, ceramics, and glass;

7. Strong resistance to slag penetration:outstanding resistance to penetration and erosion from steel slag, non-ferrous metal slag, and cement clinker, resulting in a long service life and significantly reducing kiln maintenance costs;

8. Highly customizable:standard bricks, all types of irregularly shaped bricks, and special-sized bricks can be customized according to customer needs to adapt to different kiln masonry structures, supporting customized drawings and large-scale mass production;

9. Environmentally friendly and low-pollution:chromium-free environmentally friendly magnesia bricks meet global environmental standards and can completely replace traditional magnesia-chrome bricks, suitable for the stringent environmental requirements of the European, American, and Southeast Asian markets;

10. Long service life:under suitable operating conditions, the furnace lining service life can reach several years, far superior to ordinary clay bricks and high-alumina bricks, significantly reducing overall operating costs.

Product Specifications

1. Magnesium Oxide (MgO) Content: 85%, 90%, 95%, 98%, 99%, with customizable high-purity/environmentally friendly formulas available.
2. Size Specifications: Standard bricks (230×114×65mm), all types of irregularly shaped bricks (wedge bricks, arch bricks, kerf bricks, fan-shaped bricks, kiln car bricks, etc.), custom sizes according to drawings are supported, with a dimensional tolerance of ±0.5~±2mm.
3. Bulk Density: 2.8~3.6 g/cm³, higher density indicates greater compactness, erosion resistance, and mechanical strength.
4. Apparent Porosity: 1%~20%, divided into dense bricks (<10%) and ordinary bricks (10~20%). Lightweight insulating magnesia bricks can have a porosity of 40~60%, customizable to meet specific requirements.
5. Refractoriness: 1500℃~2800℃, MgO content is positively correlated with refractoriness, reaching a maximum of 2800℃. 6. Compressive strength: 20MPa~150MPa. Electrofused dense magnesia bricks offer higher compressive strength, adaptable to the load requirements of different furnace structures.
6. Precision grade: Standard grade, precision grade. Flatness ≤0.5mm/100mm, verticality ≤1mm/100mm, ensuring sealing and structural stability.
7. Types: Sintered magnesia bricks, electrofused magnesia bricks, magnesia-calcium bricks, magnesia-alumina bricks, chrome-free environmentally friendly magnesia bricks, lightweight insulating magnesia bricks.

Note: Products of different specifications and purity levels can be customized according to customer needs.

Product Applications Industrial

1. Iron and Steel Metallurgy Industry: core refractory lining material for steelmaking converters, electric furnaces, ladles, continuous casting tundishes, and refining furnaces, accounting for over 70% of total magnesia brick consumption, and an indispensable alkaline refractory material in the iron and steel industry.

2. Non-ferrous Metals Metallurgy Industry: linings for copper, nickel, lead, zinc, and other non-ferrous metal smelting furnaces, reverberatory furnaces, blast furnaces, and flash furnaces, suitable for the entire process of non-ferrous metal melting and refining.

3. Cement and Building Materials Industry: linings for the firing and transition zones of cement rotary kilns, resisting high-temperature erosion from cement clinker and alkali salts, suitable for the mechanical stress conditions of kiln rotation.

4. High-Temperature Kilns and Heat Treatment Industry: linings, furnace doors, and kiln car platforms for industrial high-temperature electric furnaces, sintering furnaces, calcining furnaces, and tunnel kilns, covering all categories of industrial high-temperature heat treatment equipment.

5. Chemical Industry: linings for chemical high-temperature reactors, calcining furnaces, and corrosive kilns, suitable for highly corrosive conditions such as molten alkalis and salts. 6. New Energy Industry: Linings for sintering kilns of lithium battery cathode materials and calcining furnaces of ternary materials, ensuring high-purity products with no impurities, guaranteeing the purity of battery material production.

7. Aerospace and Military Industry: linings for high-temperature testing furnaces and vacuum heat treatment furnaces, suitable for extreme high-temperature, high-vacuum, and high-cleanliness military-grade environments.

8. Glass and Ceramics Industry: linings for glass melting furnaces and ceramic sintering kilns, resistant to molten glass erosion, suitable for high-temperature sintering production of glass and ceramics.

Core Application Scenarios

1. Steelmaking Core Furnace Linings: the furnace bottom, walls, and cap of converters and electric furnaces withstand the high-temperature erosion and mechanical impact of molten steel and slag, making them core consumable materials in the steelmaking process.

2. Ladle and Refining Furnaces: ladle linings, LF refining furnace linings, and VD vacuum decarburization furnace linings resist erosion by molten steel and alkaline slag, ensuring the purity of molten steel.

3. Cement Rotary Kiln Key Components: kiln linings in the firing zone and transition zone resist the high-temperature erosion of cement clinker and alkali salts, adapting to the dynamic mechanical stress of kiln rotation.

4. Non-ferrous Metal Smelting Furnaces: furnace linings for copper smelting flash furnaces and nickel smelting blast furnaces resist the molten metal erosion of non-ferrous metals. 5. Lithium-ion battery material sintering kiln: Kiln lining for ternary cathode materials and lithium iron phosphate sintering kilns, ensuring high-purity products with no heavy metal precipitation, meeting the high-cleanliness production requirements of battery materials.

6. Industrial high-temperature electric furnace: kiln lining for box furnaces, bogie hearth furnaces, and tunnel kilns, and kiln car platforms, withstanding high-temperature environments and mechanical wear from workpiece loading.

7. Chemical calcining furnace: lining for soda ash, caustic soda, and phosphate chemical calcining furnaces, resistant to strong corrosion from molten alkali and salts.

8. Vacuum heat treatment furnace: kiln lining for high vacuum and high-temperature environments, low volatility, high cleanliness, suitable for vacuum heat treatment of precision parts.

Our workshop

Why choose us?

1.Controllable Raw Materials — Own/stable magnesia supply channels, ensuring raw material purity and consistency.

2.Mature Process — Years of high-temperature sintering experience, ensuring stable and reliable product performance.

3.Strong Customization Capabilities — Supports custom processing of standard brick shapes and a full range of irregularly shaped bricks.

4.Comprehensive Testing — Equipped with a complete set of physical and chemical testing equipment, providing quality inspection reports for each batch of products.

5.Professional Service — Provides a one-stop solution including technical consultation, furnace lining design, and construction guidance.