PRODUCTS
Magnesia Spinel Brick
It is an ideal refractory material for cement self-transition zone. This brick is mainly used on the top of steel-making flat hearth furnace electric arc furnace high temperature tunnel kiln large cement rotary kiln non-ferrous me
Composition: Premium materials such as high alumina oxide, magnesium oxide, and silicon carbide, with customizable composition based on client requirements.
Form: Available in powder, brick, board, and castable forms to suit various application needs.
Refractoriness: Standard range from 1200°C to 1800°C, with options for higher temperature customization.
Application Fields: Widely used in industries such as steel, cement, glass, and petrochemicals for furnace lining and insulation.
Packaging: Options include 25 kg bags, bulk bags, and custom packaging solutions compliant with global transportation standards.
Introduction
Our experienced R&D team can customize the material, form, and size according to your specific application needs while ensuring compliance with international quality standards. With rigorous quality control and advanced production facilities, we guarantee products with high refractoriness, excellent compressive strength, and long-lasting durability. Whether you are in the steel, cement, glass, or petrochemical industry, we are your trusted partner, supporting the success of your projects.
For customization inquiries, please feel free to contact us. We will provide tailor-made solutions based on your requirements.
Magnesia Spinel Brick Details
It is an ideal refractory material for cement self-transition zone. This brick is mainly used on the top of steel-making flat hearth furnace, electric arc furnace, high temperature tunnel kiln, large cement rotary kiln, non-ferrous metal smelting furnace, etc.
Features
1. Magnesia Spinel Brick has excellent kiln skin performance;
2. Its thermal conductivity is low (1000℃, 2.27w/m·k), and its thermal expansion coefficient is small (1000℃, 1.217%);
3. The product has excellent structural flexibility, and has strong corrosion resistance and permeability resistance to K2SO4, Na2SO4, NaCl, KCl alkali metal salts decomposed by cement materials.
4. The load has a high softening temperature and excellent thermal shock resistance. It can be applied to the key parts of SP and NSP kilns with high temperature, high speed, strong alkali corrosion and high mechanical load.
Application
Magnesia Spinel Brick has the characteristics of high refractoriness, good alkali resistance and excellent refractoriness under load, and is mainly used in the regenerator of high temperature furnaces such as glass furnaces. It can also be used to make ladle casting materials, which can greatly improve the corrosion resistance of steel plate lining.
Physical And Chemical Indicators
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Brand Properties |
Magnesite alumina spinel brick |
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MAJ-75 |
MAJ-80 |
MAJ-84 |
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Bulk Density (g/cm3) |
2.90 |
2.95 |
2.95 |
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Cold Crushing Strength (MPa) |
45 |
45 |
60 |
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Apparent Porosity (%) |
19 |
19 |
18 |
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Thermal Shock Resistanceat 1,100℃ water cooling |
12 |
15 |
20 |
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Refractoriness under Load ℃ (0.2MPa T2) |
1600 |
1700 |
1750 |
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Chemical Composition (%) |
MgO |
75 |
80 |
84 |
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Al2O3 |
8 |
12 |
14 |
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Main Applications |
- Metal Line, Free Board for General Ladle |
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