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Rulon Bearings

Corning 7070 Lithia Potash Borosilicate Crushed/Powdered Glass
Categories: Ceramic; Glass; Oxide; Silicon Oxide

Material Notes: Available in mesh sizes 4 through 325 and can be customized. Devitrifies before reaching a softening point. Used for sealing and other applications.

Information provided by Corning Incorporated.

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Physical PropertiesMetricEnglishComments
Density 2.13 g/cc0.0770 lb/in³
Particle Mesh Size 4.0 - 325 Mesh4.0 - 325 MeshAvailable size range
 
Mechanical PropertiesMetricEnglishComments
Modulus of Elasticity 51.0 GPa7400 ksi
Poissons Ratio 0.220.22
Shear Modulus 20.9 GPa3030 ksiCalculated
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity  40000 ohm-cm
@Temperature 350 °C
40000 ohm-cm
@Temperature 662 °F
 1.30e+6 ohm-cm
@Temperature 250 °C
1.30e+6 ohm-cm
@Temperature 482 °F
Dielectric Constant 4.6
@Frequency 1e+6 Hz
4.6
@Frequency 1e+6 Hz
Dissipation Factor 0.00060
@Frequency 1e+6 Hz
0.00060
@Frequency 1e+6 Hz
 
Thermal PropertiesMetricEnglishComments
CTE, linear  3.20 µm/m-°C
@Temperature 0.000 - 300 °C
1.78 µin/in-°F
@Temperature 32.0 - 572 °F
 3.90 µm/m-°C
@Temperature 25.0 - 679 °C
2.17 µin/in-°F
@Temperature 77.0 - 1250 °F
Working Point 1068 °C1954 °F104 Poise
Annealing Point 496 °C925 °F1013 Poise
Strain Point 456 °C853 °F1014 Poise
 
Optical PropertiesMetricEnglishComments
Refractive Index 1.470
@Wavelength 589.3 nm
1.470
@Wavelength 589.3 nm

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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CCORNG06 / 738

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