Fused cast AZS brick

Composition: ZrO2>= 32.5% Application: Glass furnace

Classification by chemical composition:

Fused Cast AZS33#

Fused Cast AZS36#

Fused Cast AZS41#

Product Overview

AZS fused cast products, are made of industrial alumina powder, zirconia(ZrO2) as the raw material, processed by electric arc furnace melting, crystallizing, cast forming and then polishing to be demand shape and sizes.

Fused cast AZS brick is the key materials, considering its affects on glass quality and glass furnace service life.  As per casting method, AZS brick can be divided into ordinary (PT), tilt (QX), (ZWS) quasi shrinkage hole, shrinkage hole (WS). According to chemical composition, AZS brick has below three types:Fused Cast AZS33# / Fused Cast AZS36# / Fused Cast AZS41#


  • Good resistant to erosion
  • Good resistant to corrosion
  • High temperature resistant
  • Improve furnace service life


Glass furnace/glass kiln linings, like molting pool, side wall, pooling bottom etc.

Application details, please see glass kiln solution in our website.


Items AZS-33 AZS-36 AZS-41


Al2O3 ≥50.00 ≥49.00 ≥45.00
ZrO2 ≥32.50 ≥35.50 ≥40.50
SiO2 ≤15.50 ≤13.50 ≤13.00
Na2O+K2O ≤1.30 ≤1.35 ≤1.30
Apparent Porosity, % ≤1.2 ≤1.0 ≤1.2
Cold Crushing Strength, Mpa ≥300 ≥300 ≥300
Exudation Temperature of Glass Phase ≥1400 ≥1400 ≥1410
Bubble Separation Ratio(1300°C×10h) ≤1.5 ≤1.4 ≤1.0
Anti-corrosion rate of glass liquid 1500°C×36h (mm/24h)% ≤1.45 ≤1.3 ≤1.2
Apparent density as per casting method, g/cm3 PT ≥3.45 ≥3.50 ≥3.70
ZWS ≥3.60 ≥3.70 ≥3.90
WS ≥3.70 ≥3.80 ≥4.00


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