Refractory magnesia brick, often referred to as magnesite brick or magnesia refractory brick, is a type of refractory material made primarily from magnesia (magnesium oxide, MgO) as the main component. Magnesia bricks are known for their high refractoriness and excellent resistance to high temperatures.
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In AdvanceProduct Origin :
ChinaShipping Port :
Shanghai PortLead Time :
15 Working daysProduct parameters:
Item | DYS-MZ-91 | DYS-MZ-92 | DYS-MZ-93 | DYS-MZ-94 | DYS-MZ-97 |
MgO, % ≥ | 91 | 92 | 93 | 94.5 | 97 |
SiO2, % ≤ | 4 | 3.5 | 2.5 | 2 | 2 |
Fe2O3, % ≤ | 1.3 | - | - | 1.2 | 1.2 |
CaO, % ≤ | 2.5 | 2.5 | 2 | 1.8 | 1.8 |
Apparent Porosity, % ≤ | 18 | 18 | 18 | 18 | 18 |
Bulk Density, g/cm3 ≥ | 2.86 | 2.9 | 2.95 | 2.92 | 2.95 |
Cold Crushing Strength Mpa, ≥ | 60 | 60 | 60 | 60 | 60 |
0.2Mpa Refractoriness Under Load T0.6 ℃ | ≥1570 | ≥1560 | ≥1620 | ≥1650 | ≥1700 |
Straight | Split | Arch | Wedge | Tile | Other Shape |
L×W×H(mm) | L×W×H (mm) | L×W×H/h(mm) | L×W×H/h (mm) | L×W×H (mm) | Key brick |
230×114×65 | 230×114×25 | 230×114×65/45 | 230×114×65/45 | 230×230×38 | Skew brick |
230×114×75 | 230×114×32 | 230×114×65/55 | 230×114×65/55 | 230×230×50 | Soap |
230×114×37 | 230×114×75/45 | 220×114×75/45 | 230×230×65 | Checker | |
230×114×50 | 230×114×75/55 | 220×114×75/55 | 230×230×75 | Neck | |
230×114×75/65 | 220×114×75/65 | Taper |
These bricks are commonly used in various industrial applications that involve high-temperature environments, such as steelmaking, cement manufacturing, non-ferrous metal refining, and glass production. Magnesia bricks are particularly suitable for applications where alkaline slags or corrosive conditions are present.
The properties of refractory magnesia brick include:
1. High refractoriness: Magnesia bricks can withstand extremely high temperatures and maintain their structural integrity.
2. Excellent thermal shock resistance: They have good resistance to rapid temperature changes and thermal cycling.
3. High basicity: Magnesite bricks exhibit strong alkaline properties, making them suitable for applications involving alkaline environments and slag resistance.
4. Low thermal conductivity: These bricks have relatively low thermal conductivity, which helps to reduce heat losses in high-temperature processes.
Refractory magnesia bricks can be shaped into various sizes and dimensions to meet the specific requirements of different industrial furnaces, kilns, and reactors. They are typically used as linings in steel ladles, glass tank furnaces, cement kilns, and other high-temperature equipment where resistance to alkaline and high-temperature conditions is essential.
Can be used in combination with refractory powder/ refractory mortar during construction.
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