Quick Details
| Place of Origin: Henan China (Mainland) | Shape: Brick | Material: Alumina Block |
| SiO2 Content (%): <2% | Al2O3 Content (%): 94% | MgO Content (%): 0% |
| CaO Content (%): <2% | Refractoriness (Degree): 1770°< Refractoriness<... | CrO Content (%): 0% |
| SiC Content (%): 0% | Model Number: alpha-beta alumina block | Brand Name: ACRC AC-M |
fused cast alpha beta alumina lipstone for float glass line
alpha-beta alumina block is the compact structure formed form alpha-Al2O3 and beta-Al2O3 crystal in a most ideal proportion. It has good erosion resisting and good stability. Its feature is that when touching melting glass, it produces little concretion and bubbles. So, α-β alumina block may be widely used to the parts of touching melting glass like work pond and passage, and may be also used to the upper structure including crown.
Typical Chemical Composition:
Al2O3 94%
NaO2 4%
SiO2+Fe2O3+TiO2+CaO 2%
Typical Crystallographic Analysis:
alpha alumina 45%
beta alumina 53%
Vitreous Phase 2%
Typical Physical Properties:
True Specific Gravity: 3.54g/cm3
Cold Crushing Strength >200MPa
RUL(0.2MPa) >1700°C
Volume Density(Void free): 3.2g/cm3