alumina refractory brick high purity corundum fire brick
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China [CN] |
Name
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corundum products
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Ingredient
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Dense fused corundum、 Synthetic mullite、Chrome，etc
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Fire resistant
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≥1790℃
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Advantages
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1.high density& temperature resistibility
2. low bulk density, high compressive strength,
3. resistance to high temperature(≥1790℃)
4.good thermal shocking resistance
5.Excellent corrosion resistant to acids and alkalis
6.They are not influenced by H2, CO gases during use
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Size and specifications
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230x114x65mm
The size, density, chemical composition can be customized.
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Item
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High purity corundum bricks
DL-98
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Normal corundum bricks
DL-95
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Normal corundum bricks
DL-90
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Corundum Mullite Products
MDL-80
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Chrome corundum brick/corundum-chrome firebrick
GDL-85
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Al2O3％≥
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98.5
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95
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90
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80
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85
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Cr2O3％≥
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/
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/
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/
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/
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8
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SiO2％≤
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0.3
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3.0
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9.0
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18
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0.2
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Fe2O3％≤
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0.2
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0.2
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0.5
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0.5
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0.2
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R2O％≤
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0.3
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0.6
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0.6
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0.4
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0.5
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Bulk Density
(g/cm3 ≥)
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3.0
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2.9
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2.9
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2.7
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3.1
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Compressive
strength
at normal temperature
(MPa≥)
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75
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100
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100
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60
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80
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Fire resistant
(°C≥)
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1790
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1790
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1790
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1790
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1790
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Soften point under 0.2 MPa load
KD °C
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1700
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1650
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1650
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1700
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1700
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Liner Change(%)1600°C x3h
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0.2
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0.2
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0.2
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0.3
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0.2
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Thermal shock stability
1100 °C water
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6
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10
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10
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20
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15
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