Insulating Castable
Widely used in the lining of kilns, thermal equipment, flues and smoke windows in various industries and the insulation layer of atmosphere kilns.
Bulk Density(g/cm³): 0.5-1.8;
Max. Service Temperature/℃: 1150-1350;
Cold Crushing Strength(110℃*24h)≥: 1.5-20MPa;
Thermal Conductivity (W/m·k)350℃: 0.15-0.65;
Permanent Linear Change (1000℃*3h)/%: -0.5;
Technical Data
| Item | QG-1.0 | QG-0.8 | QG-0.6 | |
|---|---|---|---|---|
| Maximum Service Temperature，℃ | 1250 | 1200 | 1150 | |
| Al₂O₃，% | 43 | 40 | 36 | |
| SiO₂，% | 36 | 37 | 36 | |
| Bulk Density，g/cm³ | 1 | 0.8 | 0.5 | |
| Thermal Conductivity Coefficient，W/(m.K) | 350℃ | ≤0.3 | ≤0.25 | ≤0.15 |
| 700℃ | ≤0.4 | ≤0.30 | ≤0.20 | |
| Cold Crushing Strength，Mpa | 110℃*24h | ≥4.0 | ≥2.0 | ≥1.5 |
| 1100℃*3h | ≥5.5 | ≥2.0 | ≥1.5 | |
| Linear Change Rate After Burning PLC，% | 1100℃*3h | ±0.4 | ±0.3 | ±0.2 |
| Permanent Linear Change(1000℃*3h)/% | -1.0 | -1.0 | -1.5 | |
Advantages of Lightweight Insulating Castable
1. Lightweight easier to handle;
2. Low Thermal Expansion;
3. Good Thermal Shock Resistance.
