High grade magnesia brick
Application Industry: Refractories for Steel Industry
Application Equipment: General Refractory Brick Lining for Various Industrial Furnaces
Size: Custom high grade magnesia brick geometry per industrial furnace design (free engineering on request)
Products Overview
Our High grade magnesia brick is a high-performance refractory product engineered for general refractory brick lining service in various industrial furnaces. The product family is manufactured from first-grade and high-purity magnesia as raw materials, through high pressure forming and high temperature sintering process. The product family has excellent high temperature resistance and high resistance to alkali slag erosion for industrial furnace lining service, with stable quality and long service life performance.
The High grade magnesia brick product family is offered in four engineering-proven MZ chemistry grades. The MZ-90 grade features MgO content minimum 90% for general industrial furnace lining service. The MZ-92 grade features MgO content minimum 92% for higher-demand industrial furnace lining service. The MZ-95 grade features MgO content minimum 95%, SiO2 content maximum 2.50%, and CaO content maximum 2.0% for high-demand industrial furnace lining service. The MZ-97 grade features MgO content minimum 97%, SiO2 content maximum 1.20%, and CaO content maximum 1.50% for highest-demand industrial furnace lining service. All four grades deliver Bulk Density minimum 2.9 to 3.0 g/cm3, Apparent Porosity maximum 18% to 20%, Cold Crushing Strength minimum 40 to 50 MPa, and Refractoriness Under Load minimum 1500 to 1650 °C at 0.2 MPa loading condition.
Sourced from our Xinmi City, Zhengzhou, Henan, China facility, each High grade magnesia brick grade is engineered to ASTM, GB/T, and ISO refractory standards. For an overview of the broader catalogue, see the Refractories for the Steel Industry category, or contact our technical sales team for a free consultation against your refractory drawing.
Product Features
Features:
- Manufactured from first-grade and high-purity magnesia as raw materials with high pressure forming and high temperature sintering process
- Engineering-proven excellent high temperature resistance and high resistance to alkali slag erosion for industrial furnace lining service
- Four MZ chemistry grades covering MgO content minimum 90%-97% for matching different industrial furnace lining service requirements
- Bulk Density minimum 2.9 to 3.0 g/cm3, Apparent Porosity maximum 18% to 20%, Cold Crushing Strength minimum 40 to 50 MPa
- Refractoriness Under Load minimum 1500 to 1650 °C at 0.2 MPa for various industrial furnace service temperatures
Product Specification
High-quality magnesia brick is a product made of high-grade molding and high-temperature firing using first-grade and high-purity magnesia as raw materials. The product has excellent high temperature resistance and high resistance to alkali slag erosion.
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Brands
Items
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MZ-90 | MZ-92 | MZ-95 | MZ-97 |
|---|---|---|---|---|
| MgO (%) | ≥ 90 | ≥ 92 | ≥ 95 | ≥ 97 |
| SiO2 (%) | — | — | ≤ 2.50 | ≤ 1.20 |
| CaO (%) | ≤ 3.0 | ≤ 2.50 | ≤ 2.0 | ≤ 1.50 |
| Bulk density (g/cm³) | ≥ 2.9 | ≥ 2.92 | ≥ 2.95 | ≥ 3.0 |
| Apparent porosity (%) | ≤ 20 | ≤ 18 | ≤ 18 | ≤ 18 |
| Cold crushing strength (MPa) | ≥ 40 | ≥ 50 | ≥ 50 | ≥ 50 |
| Refractoriness under load (0.2MPa, T0.6, °C) | ≥ 1500 | ≥ 1550 | ≥ 1600 | ≥ 1650 |
Note: Seven performance parameters specified: MgO content, SiO2 content, CaO content, Bulk density, Apparent porosity, Cold crushing strength, and Refractoriness under load. Four MZ chemistry grades engineered for general refractory brick lining service in various industrial furnaces. For project-specific chemistry and geometry, contact CH Refractories engineering.
Product Applications
High grade magnesia brick is a high-performance refractory product manufactured from first-grade and high-purity magnesia as raw materials through high pressure forming and high temperature sintering process, engineered for general refractory brick lining service in various industrial furnaces. The product family has excellent high temperature resistance and high resistance to alkali slag erosion for industrial furnace lining service, with stable quality and long service life performance.
Application Industry: Refractories for the Steel Industry and the broader Metallurgical Industry.
Target Equipment: General Refractory Brick Lining of small, medium-size, and large industrial furnaces in metallurgical operations.
Specific Application Zones: The MZ-90 grade (MgO content minimum 90%) is the standard variant for general industrial furnace lining service. The MZ-92 grade (MgO content minimum 92%) is the higher-demand variant for industrial furnace lining service. The MZ-95 grade (MgO content minimum 95%, SiO2 content maximum 2.50%, and CaO content maximum 2.0%) is the high-demand variant for industrial furnace lining service. The MZ-97 grade (MgO content minimum 97%, SiO2 content maximum 1.20%, and CaO content maximum 1.50%) is the highest-demand variant for industrial furnace lining service. All four grades deliver Bulk Density minimum 2.9 to 3.0 g/cm3, Apparent Porosity maximum 18% to 20%, Cold Crushing Strength minimum 40 to 50 MPa, and Refractoriness Under Load minimum 1500 to 1650 °C at 0.2 MPa loading condition.
CH Refractories is a High grade magnesia brick manufacturer in China, Henan, Zhengzhou. The complete High grade magnesia brick product family is manufactured in our Xinmi City, Zhengzhou, Henan, China facility to ASTM, GB/T, and ISO refractory standards. Each batch is supported by free consultation, on-site technical support, and a dedicated engineering team serving Refractories for the Steel Industry customers across the global iron and steel value chain.
