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Insulating refractory fire brick light weight mullite bricks is made of alumina, fused mullite as the main raw materials of shaped refractory products, the main component is Al2O3.
Mullite insulating refractory fire brick light weight mullite bricks have the advantages of small temperature creep, strong corrosion resistance and good thermal shock stability.
It is mainly used for lining of blast furnace, hot blast furnace, electric furnace roof, reverberatory furnace and rotary kiln. In addition, high alumina bricks also widely used as open hearth regenerative lattice brick, pouring system with plug, such as nozzle brick.
Product physical and chemical indicators：
|
Index |
JM23 |
JM26 |
JM28 |
JM30 |
JM32 |
|
AL2O3%≥ |
43 |
52 |
58 |
72 |
78 |
|
Fe2O3% ≤ |
0.46 |
0.71 |
0.53 |
0.75 |
0.78 |
|
Working Temp.（℃） |
1300 |
1400 |
1500 |
1550 |
1630 |
|
Bulk Density g/cm3 |
0.8 | 1.0 |
0.8 | 1.0 |
1.0 |
1.0 |
1.3~1.6 |
|
Compressive Strength MPa |
3.5 |
3.8 |
4.2 |
4.5 |
5~12 |
|
Linear Change Rate |
1300℃X 4h 0.5
|
1400℃X 4h 0.5
|
1500℃X 4h 0.5
|
1550℃X 4h 0.4
|
1600℃X 4h 0.5
|
|
Thermal conductivity （W/m.K）≤ |
0.24 |
0.273 |
0.381 |
0.398 |
0.426 |
Our service：
1. Strict QC & Fast delivery.
2. Free samples are available by freight collect.
3. High quality goods, Perfect Pre-sales, and good designing service.
4. Welcome to visit our factory at anytime on site or online .
5. We will update you the production process after placing order by photos or online.
6. We have special after-sales team to solve your problem during using our products.
