QINGDAO LAURENT NEW MATERIALS CO.,LTD
QINGDAO LAURENT NEW MATERIALS CO.,LTD The Professional manufacturer of refractory and insulation materials in China.
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Glass Kiln High Alumina Brick , High Temperature Resistent Bricks
Description:
Laurel high alumina bricks are produced with selected bauxite chamotte by advanced process and strict quality control. The main mineral components are corundum and mullite phases. It features excellent high temperature mechanics and chemical corrosion resistance.
Features
1.Resisting high temperature
2.Great bulk density
3.Low iron content
4.Good eroding resistance
Applications:
1. Steel furnaces
2. Iron making furnaces
3. Glass kiln
4. Ceramic tunnel kiln
5. Cement kiln
Specifications:
Ordinary High alumina brick
| Item | HA60 | HA70 | HA75 | HA80 |
| AL2O3(%) | ≥60 | ≥70 | ≥75 | ≥75-80 |
| SIO2(%) | 32 | 22 | 20 | ≥18 |
| Fe2O3(%) | ≤1.8 | ≤1.8 | ≤1.8 | ≤1.8 |
| Refractoriness °C | 1790 | ＞1800 | ＞1825 | ≥1850 |
| Bulk density,g/cm3 | 2.4 | 2.45-2.5 | 2.5 | 2.55-2.6 |
| Softening temperature under load | ≥1470 | ≥1520 | ≥1530 | ≥1550 |
| Apparent porosity,% | 22 | ＜21 | ＜21 | ＜20 |
| Cold Crushing strength Mpa | ≥45 | ≥50 | ≥54 | ≥60 |
Phosphate bonded high alumina bricks
| Item | LAP75 | LAP77 | LAP85 |
| AL2O3 % | ≥75 | ≥77 | ≥80-85 |
| Fe2O3 % | ≤3.0 | ≤3.0 | ≤1.8 |
| Ca0 % | ≤0.6 | ≤0.6 | ≤0.6 |
| Refractoriness °C | ≥1800 | ≥1800 | ≥1850 |
| Bulk density g/cm3 | ≥2.65 | ≥2.70 | ≥2.80 |
| Cold crushing strength MPa | ≥60 | ≥64 | ≥110 |
| Refractoriness under load 0.2MPa °C | ≥1350 | ≥1300 | ≥1350 |
| Application | Used for high temperature parts lining of cement rotary kiln | Used for Badly worn parts of cement rotary kiln | |