ISO 9001:2015 Certified | Cage Code: 7L0f6
TYPICAL PROPERTIES of ACETALS |
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| ASTM or UL test | Property | Acetal Copolymer |
Delrin ® Homopolymer |
Delrin ® AF PTFE-filled |
| PHYSICAL | ||||
| D792 | Density (lb/in³) (g/cm³) |
0.051 1.41 |
0.051 1.41 |
0.054 1.50 |
| D570 | Water Absorption, 24 hrs (%) | 0.2 | 0.2 | 0.2 |
| MECHANICAL | ||||
| D638 | Tensile Strength (psi) | 9,500 | 11,000 | 8,000 |
| D638 | Tensile Modulus (psi) | 400,000 | 450,000 | 435,000 |
| D638 | Tensile Elongation at Break (%) | 30 | 30 | 15 |
| D790 | Flexural Strength (psi) | 12,000 | 13,000 | 12,000 |
| D790 | Flexural Modulus (psi) | 400,000 | 450,000 | 435,000 |
| D695 | Compressive Strength (psi) | 15,000 | 16,000 | 16,000 |
| D695 | Compressive Modulus (psi) | 400,000 | 450,000 | 350,000 |
| D785 | Hardness, Rockwell | M88 / R120 | M89 / R122 | M85 / R115 |
| D256 | IZOD Impact Notched (ft-lb/in) | 1.0 | 1.0 | 0.7 |
| THERMAL | ||||
| D696 | Coefficient of Linear Thermal Expansion (x 10-5 in./in./°F) |
5.40 | 4.70 | 5.00 |
| D648 | Heat Deflection Temp (°F / °C) at 264 psi |
220 / 104 | 250 / 121 | 244 / 118 |
| D3418 | Melting Point Temp (°F / °C) | 335 / 168 | 347 / 175 | 347 / 175 |
| – | Max Operating Temp (°F / °C) | 180 / 82 | 180 / 82 | 180 / 82 |
| C177 | Thermal Conductivity (BTU-in/ft²-hr-°F) (x 10-4 cal/cm-sec-°C) |
1.6 5.5 |
2.5 8.6 |
– |
| UL94 | Flammability Rating | HB | HB | HB |
| ELECTRICAL | ||||
| D149 | Dielectric Strength (V/mil) short time, 1/8″ thick | 420 | 450 | 400 |
| D150 | Dielectric Constant at 1 MHz | 3.8 | 3.7 | 3.1 |
| D150 | Dissipation Factor at 1 MHz | 0.005 | 0.005 | 0.010 |
| D257 | Volume Resistivity (ohm-cm) at 50% RH | 1015 | 1015 | 3.0 x 1016 |
NOTE: The information contained herein are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers’ complete material property datasheets.