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Rulon Bearings

Zircar Ceramics HASH-60 Alumina-Silica Insulation
Categories: Ceramic; Oxide; Aluminum Oxide

Material Notes: ZIRCAR Ceramics Alumina-Silica Insulation Type HASH-60 is a hardened insulation board used primarily for its high temperature dielectric strength in high power electrical switching equipment.

Information provided by Zircar Ceramics.

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Physical PropertiesMetricEnglishComments
Density 0.720 g/cc0.0260 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Modulus of Rupture 0.00520 GPa0.754 ksi
Compressive Yield Strength 4.10 MPa595 psiat 10% Compression, Parallel to thickness
 6.90 MPa1000 psiat 20% Compression, Parallel to thickness
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 2.20e+8 ohm-cm2.20e+8 ohm-cmASTM D257
Surface Resistance 4.60e+7 ohm4.60e+7 ohmASTM D257
Arc Resistance >= 420 sec>= 420 secASTM D495
 
Thermal PropertiesMetricEnglishComments
Melting Point 1815 °C3299 °F
Maximum Service Temperature, Air 1093 °C1999 °F
Shrinkage  1.8 %
@Temperature 980 °C,
Time 86400 sec
1.8 %
@Temperature 1800 °F,
Time 24.0 hour
Perpendicular to Thickness
 3.0 %
@Temperature 1093 °C,
Time 86400 sec
3.0 %
@Temperature 1999 °F,
Time 24.0 hour
Perpendicular to Thickness
 
Component Elements PropertiesMetricEnglishComments
Al2O3 68 %68 %
SiO2 32 %32 %
 
Descriptive Properties
ColorWhite

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CZIR040 / 2848

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