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products
Technical Specifications of Fused Cast AZS Blocks
Unit
specifications
AZS 33PT(RC)
AZS
33WS(VF)
AZS
36W(VF)
AZS
41WS
(VF)
Test
standard
Al2O3
%
balance
balance
balance
balance
GB/T6900-2006
ZrO2 ≥
32.0
32.5
35.0
39.5
GB/T4984-2007
SiO2 ≤
16.0
16.0
14.0
13.0
GB/T6900-2006
Na2O ≤
1.6
1.5
1.6
1.3
GB/T6900-2006
Fe2O3+TiO2+CaO+MgO
+Na2O+K2O+B2O3 ≤
2.5
2.5
2.5
2.5
GB/T6900-2006
Fe2O3+TiO2 ≤
0.3
0.3
0.3
0.3
GB/T6900-2006
Bulk density
（densed zone）≥
g/cm3
3.70
3.70
3.75
3.90
GB/T2997-2000
Eqv.ISO
5017:1998
Apparent porosity（ densed zone ）≤
%
3.0
3.0
2.0
1.3
GB/T2997-2000
Eqv.ISO
5017:1998
Static corrosion
speed to molten
glass（common sodium
lime glass，
1500℃×36h）≤
mm/24h
1.6
1.6
1.5
1.3
JC/T806-1996
Glass exudation
temperature ≥
℃
1400
1400
1400
1400
JC/T805-1996
Air bubble
separate out ratio（ common sodium lime
glass 1300℃×10h） ≤
％
2.0
2.0
1.5
1.0
JC/T 639-1996
Glass exudation amoun（1500℃×4h）
％
Actually measured
data would be supplied
JC/T805-1996
Thermal expansion
（1000℃）
％
Actually measured
data would be supplied
GB/T7320.1-2000
Volume weight ＞
kg/m3
3.40
3.60
3.70
3.85
Note: 1)GB/T 4984-1985=chemical analysis methods of zirconia-alumina refractories
2)GB/T 29972000=Test methods for bulk density,apparent porosity
and true porosity of densed shaped refractory products
3)JC/T 806-1996=method for static test for corrosion resistance
of refractories of glass melting furnace to molten glass
4) JC/T 805-1996=Test method for exudation temperature of glass
phase
of refractory for glass melting furnace
5）JC/T 6391996=Test method of air bubble separating out of
refractory for glass furnace
6) GB/T 7320.1-2000=Refractory materials-Determination of thermal expansion—push rod method 7) GB=Chinese national standard
8) JC=Chinese standard for building materials ng materials
9) T=recommend standar
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