Alumina Spinel Bricks Description
Alumina spinel bricks main components are alumina and spinel, containing some ratio of magnesia, are also called alumina magnesia spinel bricks.Industrial alumina spinel materials are all synthesized. Alumina 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, alumina spinel bricks can not only avoid chrome pollution, but also has fairly good spall resistance. Besides, alumina spinel bricks are also widely used in refining furnaces and refining ladles. Alumina Spinel Bricks are great refractories for clean steel.
Alumina 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.
Alumina Spinel Bricks Specifications
| Item | RSAS-90A | RSAS-90B | RSAS-92A | RSAS-92B |
| Al2O3 % ≥ | 90 | 89 | 92.5 | 91.7 |
| SiO2 % ≤ | 0.5 | 1.2 | 0.12 | 0.65 |
| MgO % ≥ | 4.0 | 4-8 | 5.85 | 5.9 |
| Fe2O3 % ≤ | 0.5 | 1.0 | 0.11 | 0.2 |
| Apparent Porosity%≤ | 20 | 20 | 17.5 | 17 |
| Bulk Density≥ | 3.05 | 3.1 | 3.1 | 3.17 |
| Cold Crushing Strength (Mpa) | 60 | 100 | 85 | 135 |
| RUL（0.2Mpa）℃ | 1550 | 1600 | 1650 | 1700 |
| PLC（2h, 1500℃）% | 0.3 | 0.22 | 0.2 | 0.29 |
Alumina Spinel Bricks Applications
Alumina spinel bricks have universal application in metallurgy, rotary cement kiln and glass kiln. Magnesia chrome brick will generate Cr6+，which has severe environment contamination, so alumina spinel brick is an ideal replacement of magnesia chrome brick, and are widely used in rotary cement kiln high temperature zone. Besides, alumina spinel bricks are also widely used in refining furnaces and refining ladles. Alumina Spinel Bricks are great refractories for clean steel. What’s more, alumina magnesia spinel brick has fairly good spall resistance, can greatly prolong the service life of furnace lining.
Alumina Spinel Bricks Manufacturer
RS Kiln Refractoriness manufactures and distributes Alumina Spinel Bricks at the best quality and the most competitive prices with our fast, responsive customer service and reliable delivery service. Waiting for your inquiry at any time.
