| JM Series Insulating Firebrick Performance Parameter | |||||||||
| Items | FJM23L | FJM-23 | FJM-25 | FJM-26 | FJM-28 | FJM-30 | FJM-32 | ||
| Classification Temperature (℃) | 1260 | 1260 | 1350 | 1430 | 1540 | 1600 | 1650 | ||
| Bulk Density (kg/m3) |
500 | 550 | 800 | 780 | 880 | 1000 | 1200 | ||
| Cold Crushing Strength (MPa) |
1.2 | 1.3 | 1.8 | 2.5 | 2.8 | 3.0 | 3.8 | ||
| Modulus of Rupture (MPa) |
0.9 | 1.0 | 1.2 | 1.4 | 1.7 | 1.8 | 2.0 | ||
| Reheating Linear Change (%) @℃×12h |
-0.3 (1230) |
-0.2 (1230) |
-0.5 (1350) |
-0.6 (1400) |
-0.8 (1500) |
-0.8 (1600) |
-0.7 (1650) |
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| Thermal Conductivity (W/m.K) |
400℃ | 0.17 | 0.19 | 0.21 | 0.21 | 0.30 | 0.40 | 0.43 | |
| 600℃ | 0.19 | 0.23 | 0.27 | 0.27 | 0.32 | 0.42 | 0.50 | ||
| 800℃ | 0.22 | 0.24 | 0.30 | 0.30 | 0.35 | 0.44 | 0.51 | ||
| 1000℃ | 0.24 | 0.25 | 0.32 | 0.32 | 0.38 | 0.45 | 0.53 | ||
| 1200℃ | -- | -- | -- | 0.35 | 0.39 | 0.47 | 0.55 | ||
| Chemaical Composition (%) |
Al2O3 | 42 | 45 | 45 | 55 | 65 | 72 | 75 | |
| SiO2 | 54 | 54 | 51 | 41.5 | 32.5 | 25.7 | 23 | ||
| Fe2O3 | 0.8 | 0.8 | 0.9 | 0.8 | 0.6 | 0.5 | 0.4 | ||
| Ti02 | 1.2 | 1.2 | 1.3 | 1.0 | 0.7 | 0.7 | 0.6 | ||
| Cao+Mg0 | 0.7 | 0.7 | 0.7 | 0.7 | 0.5 | 0.5 | 0.3 | ||
| Na2O+k2O | 1.3 | 0.3 | 1.1 | 1.0 | 0.9 | 0.8 | 0.7 | ||
| Remarks: |
All data above are average test relusts, which can be adjusted according to application request. For more information, contact our sales engineer. |
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