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Class A
| Features | Lightweight, high thermal insulation efficiency |
| Kinds | A1, A2, A3. A4, A5, A6, A7 |
| Applications |
A1 ~ A2 : For the hot surface of low temperature furnaces and drying furnace, and for the back-up lining of various industrial furnaces. A4 ~ A7 : For the hot surface and back-up lining of various industrial furnaces. |
Standard
| Item | A1 | A2 | A3 | A4 | A5 | A6 | A7 |
| Temperature | 900 | 1000 | 1100 | 1200 | 1300 | 1400 | 1500 |
| Bulk Density | 0.50≧ | 0.50≧ | 0.50≧ | 0.55≧ | 0.60≧ | 0.70≧ | 0.75≧ |
|
Thermal Conductivity at 600℃ |
0.23≧ | 0.24≧ | 0.29≧ | 0.32≧ | 0.34≧ | 0.36≧ | 0.38≧ |
Note: Above standard is subject to change without notice.
Test Results on Samples
| Item | A1 | A2 | A3 | A4 | A5 | A6 | A7 |
| Permanent Linear Change (%) | -0.40 (900) |
-0.88 |
-0.00 (1100) |
-0.03 (1200) |
−0.35 (1300) | −0.39 (1400) | −0.88 (1500) |
| Bulk Density | 0.48 | 0.49 | 0.48 | 0.52 | 0.55 | 0.65 | 0.72 |
| Thermal Conductivity at 600℃ | 0.20 | 0.21 | 0.24 | 0.25 | 0.26 | 0.35 | 0.37 |
| Cold Crushing Strength (MPa) | 1.1 | 1.3 | 1.5 | 1.6 | 2.0 | 2.5 | 3.0 |
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.
