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Clay insulating firebrick for metallurgy industry
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Clay insulating firebrick application:
1.Lower the heat capacity of the furnace
2. Used normally in industry furnaces such as Blast furnace, hot-blast furnace and EAF etc
3.Reheating furnace, Cement kiln, Tunnel kiln,boiler, coke oven, carbon furnace,glass kiln ,
4. Steel smelting furnace and various kiln lining and thermotechnical equipment, etc
Physical and chemical properties
|
Items |
Clay insulating bricks |
High alumina insulating bricks |
|||||
|
NG-0.5 |
NG-0.6 |
NG-0.8 |
NG-1.0 |
LG-0.6 |
LG-0.8 |
LG-1.0 |
|
|
Bulk density g/cm3 |
0.5 |
0.6 |
0.8 |
1.0 |
0.6 |
0.8 |
1.0 |
|
Crushing strength Mpa, ≥ |
1.5 |
2.0 |
2.5 |
3.4 |
1.96 |
2.94 |
4.00 |
|
Reheating linear change within 2% under tempetature°C |
1250 |
1300 |
1350 |
1350 |
1350 |
1400 |
1450 |
|
Thermal conductivity W/m.k) |
0.18 |
0.25 |
0.35 |
0.50 |
0.25 |
0.32 |
0.45 |
|
0.1Mpa refractoriness under load °C, ≥ |
1160 |
1250 |
1280 |
1300 |
1300 |
1350 |
1380 |
|
Al2O3 % , ≥ |
35 |
40 |
42 |
42 |
50 |
52 |
52 |
|
Fe2O3 % , ≤ |
2.5 |
2.5 |
2.0 |
2.0 |
1.8 |
1.6 |
1.5 |
