ZIRCHROM 50
Sintered 50% chrome-alumina and alumina-zirconia-silica (AZS)
High corrosion resistance.
Typical application
ZIRCHROM 50 is mainly used for glass contact and superstructure application for insulation glass furnaces.
For crown application, refer to ZIRCHROM HC.
Also a potential material for overcoating applications.
Chemical and physical properties
Typical chemical composition
Typical crystallographic analysis
- Cr2O3 - Al2O3 solid solution
- Corundum
- Monoclinic zirconia
Physical characteristics
| Description | International standards | British standards |
|---|---|---|
| Cold crushing strength | 150MPa | 21,756psi |
| Coefficient of thermal expansion at 1,000°C | 8 10-6°C | 4.4 10-6°F-1 |
| Thermal conductivity at 1,000°C | 2.1 W.m-1.K-1 |
14.6 BTU |
| Open porosity | 15% | 15% |
| Typical bulk density | 3.55g/cm3 | 222pcf |
Storage
The sintered 50% chrome-alumina and alumina-zirconia-silica (AZS), ZIRCHROM 50 solution must be stored in a dry environment protected from weather conditions.
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