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Master Bond adhesives

CeramTec 645 Steatite (MgO-SiO2)
Categories: Ceramic; Oxide; Magnesium Oxide; Silicon Oxide

Material Notes: Te value is 810°C. Hasselman Thermal Shock value is 600 K.

Data provided by CeramTec North America.

Key Words: MgO-SiO2
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 2.70 g/cc0.0975 lb/in³
Water Absorption 0.00 %0.00 %
 
Mechanical PropertiesMetricEnglishComments
Vickers Microhardness 450450HV 0.5
Tensile Strength, Ultimate 61.9 MPa8980 psiACMA Test #4
Modulus of Elasticity 107 GPa15500 ksiUltrasonic
Flexural Strength 131 MPa19000 psi20 x 40 mm
Compressive Strength 585 MPa84800 psiASTM C773-88
Poissons Ratio 0.230.23ASTM C-1 259-94
Shear Modulus 44.0 GPa6380 ksiUltrasonic
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity  4.00e+6 ohm-cm
@Temperature 700 °C
4.00e+6 ohm-cm
@Temperature 1290 °F
 >= 1.00e+14 ohm-cm
@Temperature 25.0 °C
>= 1.00e+14 ohm-cm
@Temperature 77.0 °F
Dielectric Constant 5.8
@Frequency 1e+6 Hz
5.8
@Frequency 1e+6 Hz
Dielectric Strength 8.268 kV/mm
@Thickness 6.35 mm
210.0 kV/in
@Thickness 0.250 in
Dissipation Factor  0.0019
@Frequency 1e+6 Hz
0.0019
@Frequency 1e+6 Hz
 0.0021
@Frequency 60 Hz
0.0021
@Frequency 60 Hz
Dielectric Loss Index 0.011
@Frequency 1e+6 Hz
0.011
@Frequency 1e+6 Hz
 
Thermal PropertiesMetricEnglishComments
CTE, linear  8.20 µm/m-°C
@Temperature 25.0 - 300 °C
4.56 µin/in-°F
@Temperature 77.0 - 572 °F
 8.90 µm/m-°C
@Temperature 25.0 - 700 °C
4.94 µin/in-°F
@Temperature 77.0 - 1290 °F
 9.40 µm/m-°C
@Temperature 25.0 - 1001 °C
5.22 µin/in-°F
@Temperature 77.0 - 1834 °F
Specific Heat Capacity 1.10 J/g-°C0.263 BTU/lb-°F
Thermal Conductivity 5.50 W/m-K38.2 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 1000 °C1830 °F

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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