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Rulon Bearings

Du-Co Ceramics CS-144-L-5 Steatite
Categories: Ceramic; Oxide; Magnesium Oxide; Silicon Oxide

Material Notes: Properties reported below are averages from unglazed specimens. Tests performed to ASTM specifications. Actual values may vary. Information provided by DU-CO Ceramics Company.

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Physical PropertiesMetricEnglishComments
Density 2.70 g/cc0.0975 lb/in³
Water Absorption 0.00 - 0.020 %0.00 - 0.020 %
 
Mechanical PropertiesMetricEnglishComments
Hardness, Mohs 7.57.5
Tensile Strength, Ultimate 62.0 MPa8990 psi
Flexural Strength 138 MPa20000 psi
Compressive Strength 621 MPa90100 psi
Impact Test 0.600 J0.443 ft-lbunspecified impact test
 
Electrical PropertiesMetricEnglishComments
Dielectric Constant 6.2
@Frequency 1e+6 Hz
6.2
@Frequency 1e+6 Hz
Dielectric Strength 9.40 kV/mm239 kV/in
Dissipation Factor 0.0012
@Frequency 1e+6 Hz
0.0012
@Frequency 1e+6 Hz
Dielectric Loss Index 0.0070
@Frequency 1e+6 Hz
0.0070
@Frequency 1e+6 Hz
 
Thermal PropertiesMetricEnglishComments
CTE, linear 8.40 µm/m-°C
@Temperature 20.0 - 650 °C
4.67 µin/in-°F
@Temperature 68.0 - 1200 °F
Thermal Conductivity 3.40 W/m-K23.6 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 1000 °C1830 °FSafe Operating Temp

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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