Fire Clay Insulation Brick
Application:
Widely used as the insulation layer of thermal equipment such as ignition kilns, flues, refining devices, heating devices, gas furnaces and pipelines, soaking furnaces, annealing furnaces, reaction chambers, etc.
Technical Data:
| Item/Grade | NG135 – 1.3 | NG135 – 1.2 | NG130 – 1.0 | NG125 – 0.8 | NG120 – 0.6 | |
|---|---|---|---|---|---|---|
| Bulk Density, g/cm³ | ≥ | 1.3 | 1.2 | 1.0 | 0.8 | 0.6 |
| Cold Crushing Strength, MPa | ≤ | 5 | 4.5 | 3.5 | 2.5 | 1.3 |
| / | 4.5 | 4.0 | 3.0 | 2.0 | 1.0 | |
| Permanent Linear Change, % | Experimental Conditions | 1350°C*12h | 1350°C*12h | 1300°C*12h | 1250°C*12h | 1200°C*12h |
| Xmin – Xmax | ——- | —— | -2 – 1 | —— | —— | |
| Thermal Conductivity Coefficient, W/(m·K) Average Temperature (350±25°C) | ≤ | 0.55 | 0.50 | 0.40 | 0.35 | 0.25 |
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