Radel® is a trade name for Polyethersulfone…
| Mechanical | ASTM Test Method | Radel A Extruded Polyethersulfone | Radel R R-550 Extruded Polyethersulfone | Units |
|---|---|---|---|---|
| Strength to Weight Ratio | - | - | - | ksi |
| Specific Gravity @73 F | D792 | 1.37 | 1.29 | - |
| Tensile Strength @73 F, (ult)/(yld) | D638 | 12,200 (yld) | 11,000 (ult) | psi |
| Tensile Modulus of Elasticity @73 F | D638 | 385,000 | 340,000 | psi |
| Tensile Elongation at Break @73 F | D638 | 40 - 80 | 30 | % |
| Flexural Strength @73 F | D790 | 18,700 | 15,500 | psi |
| Flexural Modulus of Elasticity @73 F | D790 | 377,000 | 345,000 | psi |
| Shear Strength @73 F | D732 | - | 9,000 | psi |
| Comprehensive Strength, (% Deformation) @73 F | D695 | - | 13,400 (10) | psi |
| Comprehensive Modulus of Elasticity @73 F | D695 | - | 280,000 | psi |
| Hardness, Rockwell, Scale as noted @73 F | D785 | M88 | M80 (R120) | - |
| Hardness, Durometer, Shore D @73 F | D2240 | - | D80 | - |
| Izod Impact, (Notched) @73 F | D256 Type A | 1.6 | 2.5 | ft-lb/in of notch |
| Coefficient of Friction, (Dry vs Steel) Dynamic | - | - | - | - |
| Limiting PV, (with 4 to 1 factor of safety applied) | - | - | - | psi-ft/min |
| Thermal | ASTM Test Method | Radel A Extruded Polyethersulfone | Radel R R-550 Extruded Polyethersulfone | Units |
|---|---|---|---|---|
| Coefficient of Linear Thermal Expansion @73 F | E-831 (TMA) | 2.7 E-05 | 3.1 E-05 | in/in/F |
| Heat Deflection Temperature @264 psi | D648 | 397 | 405 | F |
| Tg-Glass transition termperature, (Amorphous) | D3418 | - | 428 | F |
| Melting Point, (VS=Vicat Softening Temp.) | D3418 | 439 (VS) | - | F |
| Continuous Service Temperature in Air, (Max.) | - | 356 | 300 | F |
| Thermal Conductivity | - | - | 2.4 | BTU-in/hr-ft2-F |
| Electric | ASTM Test Method | Radel A Extruded Polyethersulfone | Radel R R-550 Extruded Polyethersulfone | Units |
|---|---|---|---|---|
| Dielectric Strength, Short Term | D149 | 383 | 360 | Volts/mil |
| Volume Resistivity | D257 | 1.0 E+17 | >1E15 | ohm-cm |
| Dielectric Constant @10E6 Hz | D150 | - | 3.4 | - |
| Dissipation Factor @10E6 Hz | D150 | - | 0.002 | - |
| Flammability @3.1 mm unless noted | UL94 | V-0 (0.5mm) | V-0 | - |
| H2O | ASTM Test Method | Radel A Extruded Polyethersulfone | Radel R R-550 Extruded Polyethersulfone | Units |
|---|---|---|---|---|
| Water Absorption, Immersion, 24 hours | D570(7) | 0.54 | 0.37 | % by weight |
| Water Absorption, Saturation | D570(7) | - | 1.10 | % by weight |