Magnesia Spinel Bricks Description
Magnesia spinel bricks belong to basic refractory bricks. Magnesia spinel bricks main components are Magnesia and spinel, containing some ratio of alumina, are also called Magnesia alumina spinel bricks. Industrial magnesia spinel bricks include burned types and unburned types. Magnesia based spinel bricks has high bulk density, even structure and stable quality. They offer high refractoriness and withstand erosion, corrosion, abrasion, spall, thermal shock and slag build-up and can prolong lining life in large scale. Universal application in metallurgy, rotary cement kiln and glass kiln. As an ideal replacement of magnesia chrome brick for rotary cement kiln high temperature zone, magnesia spinel bricks can not only avoid chrome pollution, but also has fairly good spall resistance. Besides, Magnesia spinel bricks are also widely used in refining furnaces and refining ladles. Magnesia spinel Bricks are great refractoriness for clean steel.
Magnesia Spinel Bricks Advantages
Excellent erosion resistance, corrosion resistance.
High refractoriness and good thermal shock resistance.
Good slag build up resistance and slag corrosion resistance.
High strength, good spall resistance and creep resistance.
Magnesia Spinel Bricks Specifications
| Item | RSMS-80 | RSAS-85 | RSAS-90 | RSAS-93 |
| MgO % ≥ | 80 | 85 | 90 | 93 |
| SiO2 % ≤ | 3.0 | 1.0 | 2.0 | 1.0 |
| Al2O3% ≥ | 9 | 9 | 5 | 5 |
| Apparent Porosity%≤ | 19 | 18 | 18 | 18 |
| Bulk Density≥ | 2.85 | 2.95 | 2.9 | 2.95 |
| Cold Crushing Strength (Mpa) | 40 | 45 | 40 | 45 |
| RUL（0.2Mpa）℃ | 1650 | 1700 | 1700 | 1700 |
| Thermal Expansion % (1400℃) | 1.1 | 1.2 | 1.3 | 1.5 |
Magnesia Spinel Bricks Applications
Magnesia spinel bricks are widely used in non ferrous metal metallurgy furnace lining, electric furnace lid, steel ladle inner lining, steel refinery vacuum processing equipment inner lining, cement kiln high temperature zone inner lining, glass kiln regenerative chamber and so on. Magnesia spinel brick is an ideal replacement of magnesia chrome brick, which will generate Cr6+ and has severe environmental contamination. Magnesia Spinel Bricks are great refractories for clean steel. What’s more, Magnesia magnesia spinel brick has fairly good spall resistance, can greatly prolong the service life of furnace lining.
Magnesia Spinel Bricks Manufacturer
The main shaped refractory products of our factories are alumina series bricks, magnesia series bricks, silica series bricks, corundum series bricks clay bricks, light weight insulating bricks, spinel bricks, dolomite bricks, silimanite bricks, checker bricks and so on.
