CUMILAG 23 (Insulation Refractories)
CUMILAG 23 insulation exhibit unique combination of chemical, mechanical stability and insulating properties. They are suitable for applications at service temperatures ranging from 1250 C to 1850 C. They can be directly exposed to flame, and combustion products.
USER INDUSTRIES
- Ceramic, Metallurgical
- Carbon black
- Fertiliser
- Iron & Steel
- Power generation
APPLICATIONS
- High temperature kiln hot face & backup lining
- Back up lining
- Primary reformer and hydrogen transfer lines back up,Secondary reformer cold face
- Blast furnace stoves
- High temperature air pre-heaters
cumilag 23 properties
| Physical Properties | UNIT | Limit Value | Typical Value |
| Maximum Hot Face Temperature | °C | 1260 | 1260 |
| Bulk Density | gm/cc | 0.60 max. | 0.55 |
| Cold Crushing Strength | Kg/cm2 | 10 min. | 0.55 |
| Reheat Change (For 24 hrs.) | % | +/-1.5max.at1250°C | -0.7at1250°C |
| Thermal Conductivity | |||
| At 400°C Hot Face Temp. | W/m K | 0.20 max. | 0.14 |
| At 600°C Hot Face Temp. | W/m K | 0.25 max. | 0.17 |
| At 800°C Hot Face Temp. | W/m K | 0.30 max. | 0.24 |
| At 1000°C Hot Face Temp. | W/m K | 0.35 max. | 0.26 |
| At 1200°C Hot Face Temp. | W/m K | 0.40 max. | 0.3 |
| Chemical Analysis | |||
| Al2O3 | % | 35.0 min. | 37.2 |
| SiO2 | % | – | 45.1 |
| Fe2O3 | % | 1.0 max. | 0.8 |