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Light silica brick(Counter 1   Addtime:2006-4-2 10:06:23)
Chemical Composition%
SiO2
92
A12O3
≤1.2
CaO
5
Physical Properties
Refractoriness 
1760
Load softening temperature T0.6
1560
Really share
≤2.35
Cool strength Mpa
≤3.5
Appatent porosity %
≤50
Bulk density g/cm3
≤1.2
Prism angle Depth mm
7
Pouring hole  Diameter mm
8
Variation
Size    ≤100mm
±2
Size  101-250mm
13
Size  251-400mm
±5
Distort
Size  251-400mm
< 2
Size 0.51-400mm
< 3
Crack
Size 0.51-400mm
Deprive
Size 0.26-0.5mm
Allow 75mm long
 
 

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