GONGYI FIFTH REFRACTORIES HEAD FACTORY

AZS series

	AZS Bricks

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Model Number

AZS

Chemical composition,% AZS-33 AZS-36 AZS-41
ZrO2 Min32 Min35 Min40
SiO2 Max14.5 Max14 Max12.5
Al2O3 Remains Remains Remains
Na2O Max1.4 Max1.6 Max1.2
Fe2O3 Max0.15 Max0.15 Max0.15
TiO2 Max0.10 Max0.10 Max0.10
Physical Properties
True proportion(g/cm3) 3.84 3.95 4.10
Cold crushing strength,Mpa 350 350 350
Thermal expansion rate,% at 1000°C 0.80 0.80 0.80
1500°C 0.80 0.80 0.80
Exudation temp.of glass phase,°C 1450 1500 1500
corrosion Resistance
to glass melt,mm/24hr 1.3 1.2 1.0
Bulk density(g/cm3) PT QX 3.50 3.52 3.70
ZWS WS 3.70 3.80 3.95
Baddeleyite 32 35 40
Glass phase 21 18 17
ɑ-Corundum 47 47 43