Material Data Sheet
Material: Delrin® AF Blend
Delrin® AF is a unique thermoplastic material used in bearing and wear applications. The addition of PTFE fibers offer better wear characteristics than unfilled Delrin®. This material is dark brown and easily recognized by the light brown line that runs throught the senter of the material. However in abrasive wear application nylon may be a possible consideration wear moisture levels are low.| Mechanical Properties | Test Method ASTM | Value | Units |
| Specific Gravity, 73°F | D792 | 1.5 | |
| Tensile Strength, 73°F | D638 | 8,000 | psi |
| Tensile Modulus of Elasticity, °F | D638 | 435,000 | psi |
| Tensile Elongation ( at break), 73°F | D638 | 15 | % |
| Flexural Strength, 73°F | D790 | 12,000 | psi |
| Flexural Modulus of Elasticity, 73°F | D790 | 445,000 | psi |
| Shear Strength, 73°F | D732 | 7,600 | psi |
| Compressive Strength, 10% Deformation, 73°F | D695 | 16,000 | psi |
| Compressive Modulus of Elasticity, 73°F | D695 | 350,000 | psi |
| Hardness, Rockwell, Scale as noted, 73°F | D785 | M85 (R115) | |
| Hardness, Durometer, Shore "D" Scale, 73°F | D2240 | D83 | |
| Izod Impact (notched), 73°F | D256 Type A | 0.7 | ft-lb/in of notch |
| Coefficient of Friction (Dry vs. Steel) Dynamic | QTM 55007 | 0.19 | |
| Limiting PV (with 4:1 safety factor applied) | QTM 55007 | 8,300 | ft.lbs./in.2 min |
| Wear Factor "k" x 10-10 | QTM 55010 | 60 | in.3-min/ft.lbs.hr |
| Thermal Properties | |||
| Coefficient of Linear Thermal Expansion (-40°F to 300°F) | E-831 (TMA) | 5 x 10-5 | in/in./°F |
| Heat Deflection Temperature 264 psi | D648 | 244 | °F |
| TG-Glass transition (amorphous) | D3418 | N/A | °F |
| Meltin Point (Crystalline) peak | D3418 | 347 | °F |
| Continuous Service Temperature in Air (Max.) (1) | 180 | °F | |
| Thermal Conductivity | F433 | BTU-in/hr-ft²-°F | |
| Electrical Properties | |||
| Dielectric Strength, Short Term | D149 | 400 | Volts/mil |
| Surface Resistivity | EOS/ESD S11.11 | >1013 | ohm/square |
| Dielectric Constant, 106 Hz | D150 | 3.1 | |
| Dissipation Factor, 106 Hz | D150 | 0.01 | |
| Flammability @ 3.1 mm (1/8 in.) | UL 94 | HB | |
| FDA Compliant | No |
| *The values shown in these and the following charts are typical, average properties. Actual values may differ due to variations in resin formulations and processing methods. These values are obtained from sources believed to be reliable, including the resin manufactures, converters and other published sources. However, they should not be used for specification or design purposes. |
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