fused cast AZS-33# feeder channel block assembly

 

Compact microstructure of AZS-33# enables it to have good corrosion resistance to melting glass. It rarely results into stoning, blistering and other defects to glass, so AZS-33# is the most common product used in glass furnaces.

 

Typical Chemical Composition:

Al2O3 49.8%

Zr2O3 33%

SiO2 15.5%

NaO2 1.4%

Fe2O3+TiO2+CaO 0.3%

 

Typical Crystallographic Anylysis:

Baddeleyite 32%

Alumina(corundum) 47%

Vitreous Phase 21%

 

Typical Physical Properties:

True Specific Gravity:3.84g/cm3

Cold Crushing Strength:350MPa

Refractoriness under load (0.2MPa):1700°C

Typical Volume Density: 3.70g/cm3

Exudation:3%