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Rulon Bearings

Ferro Aluminum Oxide P3640
Categories: Ceramic; Oxide; Aluminum Oxide

Material Notes: Manufactured at the Diamonite Plant in Shreve, Ohio. Data provided by the manufacturer, Ferro Corporation.

Key Words: Al2O3, alumina, aluminium oxide, aluminum oxide
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Density 3.67 g/cc0.133 lb/in³
Water Absorption 0.00 %0.00 %
Open Porosity 0.00 %0.00 %Gas tight. Test with helium mass spectrometer
Weibull Modulus 9.09.0
 
Mechanical PropertiesMetricEnglishComments
Knoop Microhardness 970970KHN5 microhardness, kg/mm²
Vickers Microhardness 11201120HV5 microhardness, kg/mm²
Tensile Strength, Ultimate 165 MPa23900 psiACMA Test #4
Modulus of Elasticity 276 GPa40000 ksiultrasonic
Compressive Strength 2400 MPa348000 psiASTM C773-74
Poissons Ratio 0.210.21ASTM C623
Fracture Toughness 3.90 MPa-m½3.55 ksi-in½Kic (indentation)
Shear Modulus 114 GPa16500 ksiultrasonic
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity  2.50e+7 ohm-cm
@Temperature 700 °C
2.50e+7 ohm-cm
@Temperature 1290 °F
ASTM D257
 1.20e+9 ohm-cm
@Temperature 500 °C
1.20e+9 ohm-cm
@Temperature 932 °F
ASTM D257
 1.20e+12 ohm-cm
@Temperature 300 °C
1.20e+12 ohm-cm
@Temperature 572 °F
ASTM D257
 9.50e+14 ohm-cm
@Temperature 100 °C
9.50e+14 ohm-cm
@Temperature 212 °F
ASTM D257
Dielectric Constant 9.2
@Frequency 1e+6 Hz
9.2
@Frequency 1e+6 Hz
ASTM D-116
Dielectric Strength 8.03 kV/mm
@Thickness 6.35 mm
204 kV/in
@Thickness 0.250 in
ASTM D149
Dissipation Factor 0.0070
@Frequency 1e+6 Hz
0.0070
@Frequency 1e+6 Hz
ASTM D-116
 
Thermal PropertiesMetricEnglishComments
CTE, linear  3.60 µm/m-°C
@Temperature 25.0 - 200 °C
2.00 µin/in-°F
@Temperature 77.0 - 392 °F
ASTM C32
 6.70 µm/m-°C
@Temperature 25.0 - 500 °C
3.72 µin/in-°F
@Temperature 77.0 - 932 °F
ASTM C32
 7.70 µm/m-°C
@Temperature 25.0 - 800 °C
4.28 µin/in-°F
@Temperature 77.0 - 1470 °F
 8.10 µm/m-°C
@Temperature 25.0 - 1000 °C
4.50 µin/in-°F
@Temperature 77.0 - 1830 °F
ASTM C32
Thermal Conductivity 28.1 W/m-K195 BTU-in/hr-ft²-°F
 
Component Elements PropertiesMetricEnglishComments
Al2O3 94 %94 %
 
Descriptive Properties
ColorWhite

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CFC009 / 807

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