Insulating firebricks are classified under temperature between 1300ºC and 1700ºC, manufactured from high purity alumina clay by mixing, press-forming, drying, sintering and machining. Bricks contain carefully-graded organic fillers which are burned out during sintering to give a uniform controllable pore structure. This technique makes product feature low thermal conductivity and excellent heat insulation
Insulating fire clay brick can be used as a hot face lining directly exposed to the heat or as a backup insulation layer in iron and steel mills, non ferrous foundries, petrochemical, ceramic, glass, cement and oil fired electric power generating plants.
Characteristics of FIRE CLAY INSULATING FIRE BRICK NG-IFB from us:
Uniform texture structure
High mechanical strength
More precise dimension
Low thermal conductivity
Long service life
Application:
Widely used in insulating layers of linings of various furnaces and kilns such as blast furnace, hot blast stove, coke oven, heating furnace, boiler and tunnel kiln etc.
| Item |
NG-1.0 |
NG-0.9 |
NG-0.8 |
NG-0.7 |
NG-0.6 |
| B.D.(g/cm3) |
1.0 |
0.9 |
0.8 |
0.7 |
0.6 |
| CCS>(Mpa) |
2.94 |
2.45 |
2.45 |
1.96 |
1.47 |
| T.C.<(350±25degree) |
0.50 |
0.40 |
0.35 |
0.35 |
0.25 |
| test temperature at PLC<2% degree |
1350 |
1300 |
1250 |
1250 |
1200 |
| tolerance of dimension(mm) |
standard |
| ≤100 |
±2 |
| 101-250 |
±3 |
| 251-400 |
±4 |
| warpage(mm) |
|
| ≤250 |
≤2 |
| 251-400 |
≤3 |
| missing of angle&edge(mm) |
≤7 |
| crack(mm) |
|
| ≤0.5 |
unlimited |
| 0.51-1.0 |
30 |
| >1.0 |
rejected |
Audited Supplier 
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