Typical application
ERMOLD is available in complex and large shapes. Used in superstructure area requiring high thermal shock resistance and good corrosion resistance such as doghouse backup arch, hot replacement burner blocks, peep-holes and TV blocks.
For application in bottom sub-paving, refer to ERMOLD 300.
Chemical and physical properties
Microstructure
Image
Typical chemical composition
Typical crystallographic analysis
Main phase:
- corundum
- monoclinic zirconia
Physical characteristics
| Description | International standards | British standards |
|---|---|---|
| Refractoriness under load of 2 105 Pa at 0,5% | 1,250°C | 2,282°F |
| Cold crushing strength | 50Mpa | 7,252psi |
| Linear thermal expansion | negligible | - |
| Thermal conductivity at 1,000°C | 2.2 W.m-1.K-1 | 15.3 BTU in hr-1ft-2°F-1 |
| Apparent porosity | 13% | 13% |
| Typical bulk density | 3.2g/cm3 | 200pcf |
Storage
The bonded alumina-zirconia-silica (AZS) with 30% zirconia, ERMOLD solution must be stored in a dry environment protected from weather conditions.