Alumina Bubble Castable
Description
Alumina Bubble Castable is a high-grade lightweight heat-insulating castable produced by Kerui Group with high load softening temperature, high strength and good heat insulation performance. The operating temperature is generally 1600-1700. Ideal heat insulation material for high temperature special lining insulation layer.
Specification
| Alumina Bubble Castable | KR-1.3 | KR-1.4 |
|---|---|---|
| Al2O3% | ≥92 | ≥94 |
| Fe2O3% | 0.8 | 0.2 |
| Bulk density g/cm³ | ≤1.38~1.4 | 1.7 |
| Normal temperature compressive strength Mpa | ≥5 | ≥10 |
| Operating temperature °C | 1550 | 1700 |
| Column 1 Value 6 | ±0.3 | ±0.3 |
Application
Alumina Bubble Castables are very stable in various atmospheres, and are ideal heat insulation materials for high-temperature linings. Especially for high temperature kiln application at 1800℃, it can be used as high temperature insulation filler, downdraft kiln, shuttle kiln, molybdenum wire furnace, tungsten rod furnace, induction furnace, nitriding furnace, etc.
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