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This series of products is manufactured by mechanical pressing and extrusion using special-grade high-alumina raw materials, supplemented with appropriate additives.
The products feature high compressive strength, minimal reheating linear change, and low thermal conductivity.
They are widely used as insulation layers in various industrial furnaces in the glass, metallurgy, ceramics, petroleum, and chemical industries.
These products are ideal energy-saving refractory materials.
Index Products | Unit | High alumina thermal insulation Brick | |||
CTLG140-1.2 | CTLG140-1.0 | CTLG140-0.8 | CTLG140-0.6 | ||
Al₂O₃ ≥ | % | 48 | 48 | 48 | 48 |
Fe₂O₃≤ | % | 2.0 | 2.0 | 2 | 2.0 |
Bulk density ≤ | g/cm³ | 1.2 | 1.0 | 0.8 | 0.6 |
Cold crushing strength ≥ | MPa | 8 | 3.0 | 2.5 | 1.5 |
Reheating linear change | % | -2~1 （1400℃ ×12h） | -2~1 （1400℃ ×12h） | -2~1 （1400℃ ×12h） | -2~1 （1350℃ ×12h） |
Thermal Conductivity (AVG 350℃） | W/m.k | ≤0.50 | ≤0.40 | ≤0.35 | ≤0.25 |
