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Meldin Supplier

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Saint-Gobain Meldin® 7021 Isostatically Molded Graphite Filled Polyimide
Categories: Polymer; Thermoset; Polyimide, TS

Material Notes: Melidin® 7021 is a self-lubricating thermosetting polyimide that contains 15% graphite filler. Melidin® 7021 has a low coefficient of friction and high heat resistance, and is best for high temperature bearing, seals, thrust washers, and low-wear applications.

Specification Qualifications:
Satisfies Type II, Class 1M for ASTM D 6456-99: Standard Specification for Finished Parts Made from Polyimide Resin
Satisfies Class 2, Form M for SAE AMS 3644G: Polyimide, Molded Rod, Bar and Tube, Plaque, and Formed Parts
Satisfies Type II, Class 1M for MIL-R-46198: Resin, Polyimide, Hot Pressed or Pressed and Sintered

Information provided by Saint-Gobain Performance Plastics

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Physical PropertiesOriginal ValueComments
Density 1.51 g/ccASTM D792
Water Absorption 0.20 %
@Time 86400 sec
ASTM D570
 
Mechanical PropertiesOriginal ValueComments
Hardness, Rockwell E 50ASTM D785
Tensile Strength 5500 psi
@Temperature 260 °C
ASTM D638
 9500 psi
@Temperature 23.0 °C
ASTM D638
Elongation at Break 4.3 %
@Temperature 260 °C
ASTM D638
 4.5 %
@Temperature 23.9 °C
ASTM D638
Flexural Strength 15600 psiASTM D790
Flexural Modulus 3.90 GPaASTM D790
Compressive Yield Strength 3800 psi
@Strain 1 %
ASTM D695
 19300 psi
@Strain 10 %
ASTM D695
Compressive Modulus 2.30 GPaASTM D695
 
Electrical PropertiesOriginal ValueComments
Dielectric Strength 280 V/milASTM D149
 
Thermal PropertiesOriginal ValueComments
CTE, linear 25.0 µin/in-°F
@Temperature 23.9 - 260 °C
ASTM E831

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 go back to viewing the property data in MatWeb's normal format.

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PSTGQZ082 / 150620

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