|
Analysis |
Cold Face |
Hot Face |
|
Bulk Density (Max.) (gm / cc) |
0.7 ± 0.05 |
1.0 ± 0.05 |
|
Apparent Porosity (Min.) % (Volume) |
70 |
58 |
|
Cold Crushing Strength (Min. Kg/cm2) |
10 |
30 |
|
Al2 O3 % (Min.) |
35 |
45 |
|
Fe2 O3 % (Min.) |
2.0 |
1.5 |
|
Service Temperature °C |
1250 |
1400 |
Permanent Linear Change
( ≤ 2% at °C for 2 hrs.) |
1200 |
1350 |
Thermal Conductivity (Max.)
(Kcal/mh°C at 350°C ± 10°C) |
0.20 |
0.30 |
