Product of Standard Size Fire Brick High Alumina Refractory Brick With 48%+ Alumina for High Temp Tunnel Kilns
High alumina brick, containing over 48% alumina, is classified as a neutral refractory. It is crafted through the molding and calcination of bauxite or similar high alumina raw materials. Exhibiting exceptional thermal stability, it withstands temperatures in excess of 1770 ℃.
Our range encompasses top-grade High Alumina Bricks engineered to cater to the demands of neutral refractoriness, ensuring safe operation at temperatures surpassing 1300 degrees centigrade. Tailoring to specific needs, we offer High Alumina Bricks in various specifications to meet the unique requirements of our customers.
Features of High alumina brick
1.High refractoriness
2.High load-bearing softening temperature
3.Good slag resistance
4.Good thermal stability
5.Low thermal conductivity
6.High strength
7.Good wear resistance
8.Good chemical stability
9.Wide range of use temperatures
High alumina bricks are widely used in various industries due to their excellent properties, such as high refractoriness, good slag resistance, good thermal stability, low thermal conductivity, high strength, good wear resistance, and good chemical stability.
Applications of high alumina bricks:
Refractory linings for industrial furnaces and boilers, Cement kilns, Glass furnaces, Petrochemical and refinery plants, Metallurgical furnaces.
Product Specificaiton of Standard size of fire brick high alumina refractory brick
| Item | Index |
| SK40 | SK38 | SK37 | SK36 | SK35 |
| LZ-80 | LZ-75 | LZ-65 | LZ-55 | LZ-48 |
| Al2O3 % | ≥80 | ≥75 | ≥65 | ≥55 | ≥48 |
| Apparent Porosity, % | ≤21 | ≤24 | ≤24 | ≤22 | ≤22 |
| CCS, MPa | ≥70 | ≥60 | ≥50 | ≥45 | ≥40 |
| 0.2MPa RUL ℃ | ≥1530 | ≥1520 | ≥1500 | ≥1450 | ≥1420 |
| PLC, % | 1500℃×2h
-0.4~0.2 | 1450℃×2h
-0.4~0.1 |
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Standard Size Fire Brick High Alumina Refractory Brick With 48%+ Alumina for High Temp Tunnel Kilns Images
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