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Rulon Bearings

Cordierite, 2MgO-2Al2O3-5SiO2
Categories: Ceramic; Oxide; Aluminum Oxide; Silicon Oxide

Material Notes: Property values below are typical of commercially available grades. Variations are possible between actual grades.

Key Words: aluminum (iron, magnesium) silicon oxide; 2MgO-2Al2O3-5SiO2
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Physical PropertiesMetricEnglishComments
Density 2.30 g/cc0.0831 lb/in³
Water Absorption 3.0 %3.0 %
 
Mechanical PropertiesMetricEnglishComments
Hardness, Mohs 7.57.5
Tensile Strength, Ultimate 40.0 MPa5800 psi
Modulus of Elasticity 125 GPa18100 ksi
Flexural Strength 90.0 MPa13100 psi
Compressive Strength 300 MPa43500 psi
Poissons Ratio 0.260.26
Shear Modulus 50.0 GPa7250 ksi
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 1.00e+14 ohm-cm1.00e+14 ohm-cm
Dielectric Constant 5.05.0
Dielectric Strength 7.00 kV/mm178 kV/inWide Variation Between Grades
 
Thermal PropertiesMetricEnglishComments
CTE, linear  2.20 µm/m-°C
@Temperature 20.0 - 300 °C
1.22 µin/in-°F
@Temperature 68.0 - 572 °F
 2.80 µm/m-°C
@Temperature 20.0 - 700 °C
1.56 µin/in-°F
@Temperature 68.0 - 1290 °F
 3.00 µm/m-°C
@Temperature 20.0 - 1000 °C
1.67 µin/in-°F
@Temperature 68.0 - 1830 °F
Specific Heat Capacity 0.900 J/g-°C0.215 BTU/lb-°F
Thermal Conductivity 2.50 W/m-K17.4 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 1100 °C2010 °F
 
Optical PropertiesMetricEnglishComments
Refractive Index 1.541.54

References for this datasheet.

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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