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Magnesia Zirconia Brick


The product is composed of fused magnesia sand and zircon sand and it belongs to alkaline material. This product has high density (Bulk density) is greater than 3.08g/cm3). It also resists alkaline atmosphere erosion and alkaline slag erosion and widely used in glass furnace, regenerative chamber, cement kiln, steel-making electric furnace and non-ferrous metal metallurgy.

Magnesia Zircon Brick Specifications

1. Alkali resistance
2. Slag corrosion resistance
3. Spalling resistance
4. High-temperature resistance


Magnesia Zircon Brick is used for regenerator of glass furnace.

Physical and Chemical Index

Item Magnesia-Zircon Brick
MgO% ≥ 76 73
ZrO2 %≥ 12.5 12.5
Apparent Porosity%≤ 13 15
Bulk Density (g/cm3)≥ 3.18 3.10
Cold Crushing Strength (MPa)≥ 60 50
Refractoriness Under Load°C≥ 1700 1650
Thermal Shock Resistance(950-wind cold)≥ 20 20


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