Typical application
BP MULLITE REC is dedicated to superstructure application. Due to its excellent creep resistance at very high temperature, BP MULLITE REC allows thicker insulation on crowns to reduce heat losses. Used in reinforcement and textile fiber glass furnaces as well as for vitroceramic and borosilicate glass furnaces.
If mortar is required, use BP MULLITE MORTAR.
Chemical and physical properties
Microstructure
Image
Typical chemical composition
Typical crystallographic analysis
Main phase: mullite
Physical characteristics
| Description | International standards | British standards |
|---|---|---|
| Refractoriness under load 0.2Mpa at 0.5% | 1,700°C | 3,092°F |
| Cold crushing strength | 100Mpa | 14,504psi |
| Coefficient of thermal expansion | 5.5 10-6K-1 | 3.1 10-6°F-1 |
| Thermal conductivity at 1,000°C | 2.5 W.m-1.K-1 | 17.3 BTU in hr-1ft-2°F-1 |
| Creeping at 1,700°C under load 0.4Mpa 0-100h | 0.5% | 0.5% |
| Porosity | 13% | 13% |
| Typical bulk density | 2.67g/cm3 | 167pcf |
Storage
The sintered fused mullite 75% alumina, BP MULLITE REC must be stored in a dry environment protected from weather conditions.