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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Steel Furnaces Fire Brick Refractory , High Alumina Refractory 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.
The most competitive price,good quality,safty packing,prompt delivery time,and excellent after-sales services.
Lower ferric Oxide,lower porosity,higher refractoriness,higher density,higher CCS and exact tolerance.
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 | |
Competitive Advantage:
