Jundao (Henan) New Materials Co.,Ltd.
Jundao（Henan）New Materials Co.,Ltd.
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Magnesia-chrome brick containing not less than 15% high content of Cr2O3
Magnesia-chrome bricks are made of fused chrome sand and chrome ore with high Cr2O3 content and high purity.The refractory product for RH furnace is mainly magnesia chrome brick.
Magnesia-chrome bricks features
High refractoriness
High temperature strength
Strong resistance to alkaline slag corrosion
Excellent thermal shock resistance and certain adaptability to acidic slag.
Application
Magnesia chrome bricks are mainly used in metallurgical industries, such as the construction of flat furnace tops, electric furnace tops, refining furnaces and various non-ferrous metal smelting furnaces.
| Items | Index value |
| MgO /% | ≥60 |
| Cr2O3 /% | ≥15 |
| SiO2 /% | ≤2 |
| Bulk density /g/cm3 | ≥3.1 |
| Apparent porosity /% | ≤18 |
| Cold crushing strength /Mpa | ≥40 |
| Linear change rate /% (1600℃ 3h) | +0.23 |
| Application | RH furnace working layer of external refining furnace |