ZIRAL GC

Range
Expendables
Subtitle

Bonded alumina-zirconia-silica (AZS) with 20% zirconia

Description

ZIRAL GC is recommended for glass contact application in feeder expendables where high corrosion resistance is required.

Typical application

  • spouts

ZIRAL GC is recommended for sodalime glassware, cosmetic glass and high-temperature glass.

Chemical and physical properties

Typical chemical composition

 

Typical crystallographic analysis

Main phase:

  • corundum
  • monoclinic zirconia

Secondary phase:

  • mullite
  • silicate

Physical characteristics

Description International standards British standards
Cold crushing strength 50MPa 7,252psi
Refractoriness under load 2 105Pa,
0.5% at
1,650°C 3,002°F
Coefficient of thermal expansion 5 10-6K-1 2.8 10-6°F-1
Thermal conductivity at 1,000°C 2 W.m-1.K-1 13.9 BTU in hr-1ft-2°F-1
Thermal shock resistance medium medium
Porosity 17% 17%
Typical bulk density 3.15g/cm3 197pcf

Storage

The bonded alumina-zirconia-silica (AZS) with 20% zirconia, ZIRAL GC solution must be stored in a dry environment protected from weather conditions.

Expendables Catalog

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