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Saint-Gobain Meldin® 7021 CM Compression Molded Graphite Filled Polyimide
| Category | Polymer , Thermoset , Polyimide, TS |
| Manufacturer | Saint-Gobain Perfomance Plastics |
| Trade Name | Meldin® |
| Port | Shanghai port,China |
| Trade Terms | FOB, CFR, CIF |
| Payment Terms | L/C, T/T, Western Union |
| Download PDF | Saint-Gobain Meldin® 7021 CM Compression Molded Graphite Filled Polyimide.pdf  |
| Price | EMAIL US sales@lookpolymers.com |
Material Notes:
Melidin® 7021 CM is a self-lubricating compression molded 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 1P for ASTM D 6456-99: Standard Specification for Finished Parts Made from Polyimide ResinSatisfies Class 2, Form P for SAE AMS 3644G: Polyimide, Molded Rod, Bar and Tube, Plaque, and Formed PartsSatisfies Type II, Class 1P for MIL-R-46198: Resin, Polyimide, Hot Pressed or Pressed and SinteredInformation provided by Saint-Gobain Performance Plastics
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 1.51 g/cc | 0.0546 lb/in³ | ASTM D792 |
| Water Absorption | 0.19 % @Time 86400 sec |
0.19 % @Time 24.0 hour |
ASTM D570 |
| 0.50 % @Time 173000 sec |
0.50 % @Time 48.0 hour |
ASTM D570 | |
| Deformation | 0.10 % | 0.10 % | 2000 psi load; ASTM D621 |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Hardness, Rockwell E | 25 - 40 | 25 - 40 | ASTM D785 |
| Tensile Strength | 39.3 MPa @Temperature 260 °C |
5700 psi @Temperature 500 °F |
ASTM D638 |
| 51.7 MPa @Temperature 150 °C |
7500 psi @Temperature 302 °F |
ASTM D638 | |
| 57.2 MPa @Temperature 100 °C |
8300 psi @Temperature 212 °F |
ASTM D638 | |
| 65.5 MPa @Temperature 23.0 °C |
9500 psi @Temperature 73.4 °F |
ASTM D638 | |
| Elongation at Break | 3.2 % @Temperature 260 °C |
3.2 % @Temperature 500 °F |
ASTM D638 |
| 4.7 % @Temperature 23.9 °C |
4.7 % @Temperature 75.0 °F |
ASTM D638 | |
| Flexural Strength | 59.3 MPa @Temperature 260 °C |
8600 psi @Temperature 500 °F |
ASTM D790 |
| 109 MPa @Temperature 23.9 °C |
15800 psi @Temperature 75.0 °F |
ASTM D790 | |
| Flexural Modulus | 2.40 GPa @Temperature 260 °C |
348 ksi @Temperature 500 °F |
ASTM D790 |
| 3.60 GPa @Temperature 23.9 °C |
522 ksi @Temperature 75.0 °F |
ASTM D790 | |
| Compressive Yield Strength | 29.6 MPa @Strain 1.00 % |
4300 psi @Strain 1.00 % |
ASTM D695 |
| 124 MPa @Strain 10.0 % |
18000 psi @Strain 10.0 % |
ASTM D695 | |
| Compressive Modulus | 3.10 GPa | 450 ksi | ASTM D695 |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| CTE, linear | 39.6 µm/m-°C @Temperature 22.8 - 260 °C |
22.0 µin/in-°F @Temperature 73.0 - 500 °F |
ASTM E831 |
| Thermal Conductivity | 0.720 W/m-K | 5.00 BTU-in/hr-ft²-°F | ASTM F433 |
| Oxygen Index | 100 % | 100 % | ASTM D2863 |
| Electrical Properties | Metric | English | Comments |
|---|---|---|---|
| Surface Resistivity per Square | 1.00e+8 - 1.00e+9 ohm | 1.00e+8 - 1.00e+9 ohm | ASTM D257 |
| Dielectric Strength | 11.0 kV/mm | 280 kV/in | short time 2 mm thick; ASTM D149 |
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