Clay insulating brick Good heat insulation, strong resistance to acidic slag erosion. Used for insulation layers of kiln linings in steel and other industries, as well as for insulation of thermal pipelines and building walls.
Clay Insulating Bricks are acidic thermal - insulating refractory products made from refractory clay as the main raw material through processes such as batching, shaping, and firing. They are widely used in high - temperature industrial equipment and the building thermal - insulation field.
Clay Insulating Brick Size: 230mm × 114mm × 65mm (non-standard customization is available).
Features and Properties
| Index Items | ZKNG135 - 1.3 | ZKNG135 - 1.0 | ZKNG125 - 0.8 | ZKNG120 - 0.6 | |
| Bulk Density /g/cm³ ≤ | 1.3 | 1.0 | 0.8 | 0.6 | |
| High-temperature Compressive Strength /MPa ≥ | 8 | 4 | 3 | 1.5 | |
| Permanent Linear Change after Heating /% | Test Temperature T / °C | 1350 °C × 12h | 1300 °C × 12h | 1250 °C × 12h | 1200 °C × 12h |
| Xmin ~ Xmax | -2 ~ +1 | -2 ~ +1 | -2 ~ +1 | -2 ~ +1 | |
| Thermal Conductivity /W/(m·K) at an Average Temperature of 350 ± 25 °C | 0.55 | 0.40 | 0.35 | 0.25 | |
SiO₂:91%;
Bulk Density:0.8-1.2g/cm³;
Thermal Conductivity :0.26-0.35;
Al₂O₃:90-99%;
Bulk Density:1.35-1.70g/cm³;
Cold Crushing Strength:8-20MPa;
Al₂O₃:40-70%;
Bulk Density:0.60-1.10g/cm³;
Thermal Conductivity:0.20-0.60;
Al₂O₃:≥48%;
Bulk Density:0.6-1.2g/cm³;
Thermal Conductivity :0.25-0.50;
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