The refractoriness of JM26 is above 1430℃. The refractoriness and pressure of JM26 are slightly higher than that of JM23. It is commonly used in the lining and insulation layer of some large industrial kilns.
| Item/Grade | JM-26 | |||
|---|---|---|---|---|
| ω (Al2O3)/% | 54 | 55 | 56 | 56 |
| ω (Fe2O3)/% | 0.9 | 0.8 | 1.0 | 1.0 |
| Bulk Density (g/cm³) | 0.7 | 0.8 | 0.9 | 1.0 |
| Cold Crushing Strength/MPa | 2.0 | 2.3 | 2.8 | 3.2 |
| Permanent Linear Change/% | -1.0 | -0.65 | -0.5 | -0.5 |
| 1400℃×12h | 1400℃×12h | 1400℃×12h | 1400℃×12h | |
| Thermal Conductivity 350℃ ≤/[W/(m·K)] | 0.21 | 0.25 | 0.30 | 0.32 |
1.Excellent insulation performance 2.Stable and reliable performance 3.High compressive strength 4.Lightweight, easy to install
1. Power industry: thermal power plant boilers, chimneys and other equipment 2. Petrochemical industry: insulation layer of chemical reactors in distillation towers and storage tanks of petroleum refining equipment 3. Glass industry: for example, lining insulation layer of glass kilns 4. Ceramic kilns: insulation layer of kilns in the ceramic industry