ER 1681® RT

Range
Fused cast
Expendables
Subtitle

Void-free electrofused AZS (alumina-zirconia-silica) with 32% zirconia

Description

AZS with good castability enabling complex and varied shapes and sizes. Void-free structure enabling longer lifetime.

Chemical and physical properties

Microstructure

Image
Microstructure of ER 1681

Typical chemical composition

 
 

Typical crystallographic analysis

 
 

Physical characteristics

Description International standards British standards
Refractoriness under load of 2.105 Pa (2kg/cm²) 1,700°C 3,092°F
Cold crushing strength 300Mpa 43,511psi
True specific gravity 3.84g/cm3 240pcf
Typical bulk density 3.72g/cm3 232pcf

Typical application

Standard material with high corrosion resistance for a very large range of applications:

  • superstructures, including crowns
  • glass-contact working end and feeders for sodalime and insulation glass fiber

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