Brick Standard Size: 230*114*65
MgO% ≥：70/75/80 ZrO2 %≥：8/10/13
Apparent Porosity%≤：19
Bulk Density (g/cm3)≥：2.95
Refractoriness Under Load:≥1600 °C
Cold Crushing Strength (MPa)≥：50、45、40
Thermal Shock Resistance:≥10 (950-wind cold)
Performance of Magnesia Zirconia Brick
♦ Good alkali resistance
♦ Slag corrosion resistance
♦ Anti-stripping & spalling resistance
♦ High temperature resistance
Description of Magnesia Zirconia Brick
Magnesium-zirconium bricks are made of high-quality magnesia and zircon as their main raw materials, which are fired at medium and high temperatures. Compared with the matrix magnesium brick, it has high load softening temperature, good thermal shock resistance, especially alkali vapor permeability resistance, and various destruction performances that resist repeated condensation and evaporation. In addition, its thermal conductivity is excellent.
Magnesia zirconia brick 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.
Technical Dates of Magnesia Zirconia Brick
| Item | Magnesia zircon brick | |||
| Grade | MAGZIR-8 | MAGZIR-10 | MAGZIR-12 | MAGZIR-13 |
| MagO (%) ≥ | 80 | 75 | 75 | 70 |
| ZrO2 (%) ≥ | 8 | 10 | 12 | 13 |
| 0.2Mpa Refractoriness Under Load T0.6 ℃ | 1600 | 1550 | 1550 | 1600 |
| Cold Crushing Strength (Mpa) | 50 | 45 | 45 | 40 |
| Bulk Density g/cm³ | 2.95 | 3 | 3.05 | 3.05 |
| Apparent Porosity % | 19 | 18 | 18 | 18 |
| Pernanent Linear Change On Reheating % 15000 ℃X2h | 0~+0.4 | 0~+0.4 | 0~+0.4 | 0~+0.4 |
| Thermal Shock Resistance 100℃ water cycles ≥ | 10 | 10 | 10 | 10 |
Application of Magnesia Zirconia Brick
Magnesia Zirconia Brickis widely used in glass furnaces, regenerators, cement kilns, steelmaking furnaces and non-ferrous metal smelting. Also widely is used In glass furnaces, regenerators, cement kilns, steelmaking furnaces and non-ferrous metal smelting.
