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Sumitomo Bakelite Durez® 31735 Phenolic, Compression Grade
| Category | Polymer , Thermoset , Phenolic |
| Manufacturer | Sumitomo Bakelite High Peformance Plastics |
| Trade Name | Durez® |
| Port | Ningbo port,China |
| Trade Terms | FOB, CFR, CIF |
| Payment Terms | L/C, T/T, Western Union |
| Download PDF | Sumitomo Bakelite Durez® 31735 Phenolic, Compression Grade.pdf  |
| Price | EMAIL US sales@lookpolymers.com |
Material Notes:
Durez 31735 is a special purpose phenolic molding compound developed for automotive and industrial pulleys. This material is designed to optimize pulley performance relating to belt life, dimensional tolerance, impact strength, and other properties required in pulley applications.Information provided by Sumitomo Bak North America, Inc.
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 1.43 g/cc | 0.0517 lb/in³ | ASTM D792 |
| Apparent Bulk Density | 0.490 g/cc | 0.0177 lb/in³ | ASTM D1895 |
| Water Absorption | 0.50 % | 0.50 % | ASTM D570 |
| Linear Mold Shrinkage | 0.0060 cm/cm | 0.0060 in/in | ASTM D955 |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Tensile Strength, Ultimate | 55.0 MPa | 7980 psi | ASTM D638 |
| Tensile Modulus | 6.90 GPa | 1000 ksi | ASTM D638 |
| Flexural Strength | 83.0 MPa | 12000 psi | |
| Flexural Modulus | 8.20 GPa | 1190 ksi | |
| Compressive Strength | 207 MPa | 30000 psi | ASTM D695 |
| Poissons Ratio | 0.24 | 0.24 | |
| Shear Modulus | 2.78 GPa | 403 ksi | Calculated |
| Izod Impact, Notched | 0.280 J/cm | 0.525 ft-lb/in | ASTM D256 |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| CTE, linear | 36.0 µm/m-°C @Temperature 30.0 - 150 °C |
20.0 µin/in-°F @Temperature 86.0 - 302 °F |
|
| Specific Heat Capacity | 1.17 J/g-°C | 0.280 BTU/lb-°F | |
| Thermal Conductivity | 0.370 W/m-K | 2.57 BTU-in/hr-ft²-°F | Cenco Fitch |
| Deflection Temperature at 1.8 MPa (264 psi) | 177 °C | 351 °F | ASTM D648 |
| Electrical Properties | Metric | English | Comments |
|---|---|---|---|
| Electrical Resistivity | 1.00e+12 ohm-cm | 1.00e+12 ohm-cm | ASTM D257 |
| Dielectric Constant | 6.0 @Frequency 1e+6 Hz |
6.0 @Frequency 1e+6 Hz |
ASTM D150 |
| Dielectric Strength | 9.80 kV/mm | 249 kV/in | Step by step; ASTM D149 |
| 10.8 kV/mm | 274 kV/in | Short Time; ASTM D149 | |
| Dissipation Factor | 0.050 @Frequency 1e+6 Hz |
0.050 @Frequency 1e+6 Hz |
ASTM D150 |
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