SK-32 / SK-35Insulating shapes
LG-85 / LG-99Alumina bubble brick
High-temperature lightweight brick based on hollow alumina spheres, with high strength and very low conductivity.
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PRODUCT / LG-85 / LG-9901 / APPLICATION
Application and operating zones
Hot-face lining of pyrolysis, hot-blast, tunnel, electric and petrochemical furnaces.
02 / TYPICAL DATA
Technical specifications
PropertyTypical value
Al₂O₃85-99%
Maximum service temperature1600-1800°C
GRADE COMPARISON
Grades and technical properties
For each shipment, composition, geometry, and guaranteed properties are fixed in the specification and batch quality certificate.
| Grade | Al₂O₃ | SiO₂ | Fe₂O₃ | Bulk density | Cold crushing strength | Thermal conductivity @ 800°C | Maximum service temperature |
|---|---|---|---|---|---|---|---|
| LG-99 | 99% | 0.3% | 0.1% | 1.60 g/cm³ | 15 MPa | 1.4 W/mK | 1800°C |
| LG-90 | 90% | 7% | 0.1% | 1.60 g/cm³ | 15 MPa | 1.4 W/mK | 1700°C |
| LG-85 | 85% | 13% | 0.2% | 1.60 g/cm³ | 20 MPa | 1.4 W/mK | 1600°C |
Properties are shown as typical values. The operating grade and guaranteed values are selected for the service conditions and fixed in the supply specification.
