yixing xinwei leeshing refractory materials co.,Ltd
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High Refractoriness Refractory Brick 75% Chrome Magnesia Brick for Cement Plant
Magnesia-chrome brick is an alkaline refractory material fired from chrome ore and magnesia. The main components are chromium oxide and magnesium oxide.Good thermal stability, it is sintered at a high temperature above 1800°C in an ultra-high temperature tunnel kiln, and the refractoriness is above 2000°C. The performance of resistance to sudden temperature change and resistance to alkaline slag is good. Used for laying steel leveling furnace, steelmaking electric furnace, non-ferrous metal smelting furnace, cement rotary kiln lining, RH refining furnace. This kind of brick has high fire resistance, high temperature and high temperature strength, strong erosion resistance to alkaline slag, good thermal stability, and also has a certain adaptability to acid slag.
| Index | Magnesite-Chrome Brick | ||
| MGe-20 | MGe-16 | MGe-12 | |
| MgO% | ≥40 | ≥50 | ≥60 |
| Cr2O3% | ≥20 | ≥16 | ≥12 |
| SiO2 | – | – | – |
| Refractoriness Under Load 0.2MPa℃ | ≥1700 | ≥1650 | ≥1580 |
| Apparent porosity% | ≤18 | ≤18 | ≤18 |
| Cold Crushing Strength Mpa | ≥40 | ≥40 | ≥40 |
| Bulk density(Kg/m3) | |||
| Thermal Shock Resistance (950℃ Air cooling ) | – | – | – |
Standard sizing: 230 x 114 x 65 mm ,Special size and OEM Service also provide!
The size is precise, providing kinds of shapes according to customer's drawing
Features
1. brick with characteristics of multi mineral composition, strong alkalinity, high density.
2. basic refractory magnesia brick is typical, the ability to resist the strong alkaline slag erosion.
3. refractory magnesia brick is also very high, generally can reach more than 2000 DEG C.
4. Magnesia brick load softening temperature is much lower than the refractoriness, is about 1500 degrees celsius.
5. Magnesia brick the thermal conductivity of magnesia brick is good ,low thermal insulation.
6. Magnesia brick thermal expansion, thermal shock stability.
Our certificates
ISO14001
ISO50001
ISO9001
ISO45001