Refractory brick is a block of refractory ceramic material used in lining furnaces, kilns, fireboxes, and fireplaces.
We provide high quality Refractory Fire Bricks that are used on wide range in the various industries like Cement, Glass and Steel. Refractory Fire Bricks are provided as per the quantity and specifications required by the customers. We provide an extensive range of Refractory Fire Bricks at reasonable prices that depend upon the quantity ordered.
Fire Clay Brick
The main chemical components: Al2O3 content is 30%-48%, SiO2 content is 50%-65%, and a small number of alkali metals, metal oxides, etc. Mineral composition is usually mullite, quartz and glass phase. Its refractoriness is 1580-1750 °C, refractoriness under load is 1250-1450 °C, with good thermal resistance and strong ability to resist acid slag.
Fire Clay Bricks is used for lower parts of regenerators, hot blast stove, furnaces of metallurgic, building material, glass, ferrous metal and so on.
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Item |
Index |
|||
|
SK-30 |
SK-32 |
SK-34 |
SK-35 |
|
|
AL2O3 % (≥) |
30 |
35 |
38 |
45 |
|
Fe2O3 % (≤) |
2.5 |
2.5 |
2.0 |
2.0 |
|
Refractoriness(SK) |
30 |
32 |
34 |
35 |
|
Refractoriness Under Load, 0.2MPa, (°C ) |
1250 |
1300 |
1350 |
1400 |
|
Apparent Porosity (%) |
22-26 |
22-26 |
20-24 |
20-22 |
|
Bulk Density (g/cm3) |
1.9-2.0 |
1.95-2.1 |
2.1-2.2 |
2.15-2.22 |
|
Cold Crushing Strength (MPa) |
20 |
25 |
25 |
30 |
|
Thermal Expansion at 1000°C (%) |
0.8 |
0.6 |
0.6 |
0.5 |