Typical application
C12TS is typically used in high-wear areas. With good thermal-mechanical properties, C1221 is also used in areas subject to high thermal gradient.
- Reinforcement and textile fiber glass furnaces : throat, flow blocks and doghouse areas.
- Insulation fiberglass furnaces : throat and other high-wear areas.
- Sodalime glass furnaces : throat and submerged wall.
The superior corrosion resistance minimize the potential impact on glass coloration.
C12TS is also a potential material for overcoating applications.
Chemical and physical properties
Microstructure
Image
Typical chemical composition
Typical crystallographic analysis
Main phase: chromic oxide
Physical characteristics
| Description | International standards | British standards |
|---|---|---|
| Cold modulus of rupture | 28MPa | 4,061.1psi |
| Cold crushing strength | 114MPa | 16,534psi |
| Coefficient of thermal expansion | 8.3 10-6K-1 | 4.6 10-6°F-1 |
| Thermal conductivity at 1,000°C | 3.3 W.m-1.K-1 | 22.9 BTU in hr-1ft-2°F-1 |
| Porosity | 19% | 19% |
| Typical bulk density | 4.2g/cm3 | 262pcf |
Storage
The coarse grain sintered dense high chrome, C12TS solution must be stored in a dry environment protected from weather conditions.