ER 1681® RN

Range
Fused cast
Subtitle

Regular cast, electrofused Alumina-Zirconia-Silica (AZS) with 32% zirconia

Description

Good castability Alumina-Zirconia-Silica (AZS) enabling complex and varied shapes and sizes.

Typical application

The regular cast, electrofused Alumina-Zirconia-Silica (AZS) with 32% zirconia, ER 1681 RN is used in a very large range of applications:

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

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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 ≥350Mpa ≥50,763psi
Typical bulk density 3.5g/cm3 218pcf

Thermal conductivity curve

0123456789101102004006008001,0001,2001,4001,6001,800Thermal conductivity (W/(mK)Temperature (°C)
CONDUCTIVITY ER 1681

Electrical resistivity curve

Temperature (°C)Electrical resistivity (ohm-cm)800.00710.00900.00500.001,000.00370.001,100.00220.001,200.00160.001,300.00120.001,400.00110.001,500.0090.001,600.0081.00ER 16811101001,00010,0008009001,0001,1001,2001,3001,4001,5001,600Electrical resistivity (ohm-cm)Temperature (°C)
RESISTIVITY ER 1681

Storage

The regular cast, electrofused Alumina-Zirconia-Silica (AZS) with 32% zirconia, ER 1681 RN must be stored in a dry environment protected from weather conditions.

Related products

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Alumina-zirconia-silica (AZS) with good castability enabling complex and varied shapes and sizes. Void-free structure enabling longer lifetime.

Fused cast

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Low exudation and high creep resistance.
Good resistance to alkali vapour and carry over.

Fused cast

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Excellent glass contact properties with extremely low defect potential.
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Sintered

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Available in complex and large shapes.

Expendables

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