REFRACTORY FIRE CLAY BRICK
Refractory fire clay brick include a comprehensive range of fire clay brick consisting of 35-50% alumina, which exhibit excellent strength. The firebrick range is based upon flint clay giving it both a low iron and low alkali characteristic, resistance to thermal shock, abrasion, chemical attack and reducing atmospheres are just some of the key criteria determining choice of product within each application.
Features:
Low bulk density, low thermal conductivity, good thermal insulation performance.
Refractory category allow direct contact of fire, suitable ofr various atmosphere
Good integrity with furnace lining, long service life, easy operation, could be shaped freely.
Typical Applications:
Furnaces of metallurgy industry, heat treatment furnace.
Furnaces of chemical industry and construction industry.
Furnace of incineration of garbage, recirculating fluidized bed furnace.
Classification |
SK32 |
SK34 |
SK36 |
Refractoriness(SK/°C) |
1710 |
1750 |
1790 |
Bulk Density |
2.1 |
2.2 |
2.3 |
Refractoriness under load 0.2Mpa,Ta,(°C) |
1300 |
1350 |
1450 |
Porosity(%) |
19-22 |
19-23 |
20-24 |
Cold crushing strength(Mpa) |
30 |
30 |
45 |
Thermal expansion at1000°C(%) |
0.7 |
0.6 |
0.3 |
Chemical Composition(%) |
|
|
|
Al2O3 |
35 |
40 |
50 |
Fe2O3 |
3.0 |
2.5 |
2.0 |