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LBK
| Features | World’s lightest, low thermal conductivity, low heat storage |
| Kinds | LBK-20, LBK-23, LBK-26, LBK-28, LBK-30, and LBK 3000 |
| Applications |
For the hot surface and back-up lining of following industrial furnaces. |
Standard
| Item | LBK-20 | LBK-23 | LBK-26 | LBK-28 | LBK-30 | LBK-3000 |
| Temperature | 1200 | 1300 | 1400 | 1500 | 1550 | 1600 |
| Bulk Density | 0.50≧ | 0.55≧ | 0.75≧ | 0.80≧ | 0.90≧ | 0.90≧ |
|
Thermal Conductivity at 350±10℃ |
0.17≧ | 0.19≧ | 0.24≧ | 0.27≧ | 0.30≧ | 0.37≧ |
| Cold Crushing Strength (MPa) | 0.59≧ | 0.78≧ | 0.98≧ | 0.98≧ | 1.5≦ | 1.5≦ |
| Modulus of Rupture | 0.49≧ | 0.69≧ | 0.78≧ | 0.98≧ | 1.5≦ | 1.3≦ |
| Content rate of Fe2O3 (%) | 1.5≧ | 1.5≧ | 1.5≧ | 1.0≧ | 1.0≧ | 1.0≧ |
Note: Above standard is subject to change without notice.
Test Results on Samples
| Item | LBK-20 | LBK-23 | LBK-26 | LBK-28 | LBK-30 | LBK-3000 | |
| Reheat Shrinkage | 0.03 (1200) | 0.19 (1300) | 0.25 (1400) | 0.31(1500) | 0.28 (1550) | 0.26 (1600) | |
| Bulk Density | 0.48 | 0.52 | 0.59 | 0.70 | 0.75 | 0.78 | |
|
Thermal Conductivity at 350±10℃ |
0.16 | 0.17 | 0.23 | 0.25 | 0.28 | 0.32 | |
| Cold Crushing Strength (MPa) | 1.4 | 2.0 | 2.9 | 3.2 | 3.5 | 3.2 | |
| Modulus of Rupture | 1.0 | 1.2 | 1.4 | 1.7 | 1.9 | 1.7 | |
|
Chemical Composition |
Al2O3 | 45 | 45 | 55 | 72 | 69 | 76 |
| SiO2 | 49 | 49 | 42 | 26 | 30 | 24 | |
| Fe2O3 | 1.4 | 1.4 | 0.7 | 0.6 | 0.5 | 0.3 | |
Note: Above test results are average results of tests conducted under standard procedures and
subject to variation. Results should not be used for specification purposes.
