ISO 9001:2015 Certified | Cage Code: 7L0f6
TYPICAL PROPERTIES of SEMITRON® ESD 490 HR |
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| ASTM or UL test | Property | Semitron ESd 490HR |
| PHYSICAL | ||
| D792 | Density (lb/in³) (g/cm³) |
0.054 1.50 |
| D570 | Water Absorption, 24 hrs (%) | 0.18 |
| D570 | Water Absorption, Saturation (%) | 1.65 |
| MECHANICAL | ||
| D638 | Tensile Strength, Ultimate (psi) | 14,000 |
| D638 | Tensile Modulus (psi) | 940,000 |
| D638 | Tensile Elongation at Break (%) | 2.3 |
| D790 | Flexural Strength (psi) | 21,000 |
| D790 | Flexural Modulus (psi) | 950,000 |
| D695 | Compressive Strength (psi) | 26,000 |
| D695 | Compressive Modulus (psi) | 600,000 |
| D785 | Hardness, Rockwell | R123 / M105 |
| D256 | IZOD Notched Impact (ft-lb/in) | 1.0 |
| THERMAL | ||
| D696 | Coefficient of Linear Thermal Expansion (x 10-5 in./in./°F) |
2.8 |
| D648 | Heat Deflection Temp (°F / °C) at 264 psi |
500 / 260 |
| – | Max Operating Temp (°F / °C) | 475 / 246 |
| C177 | Thermal Conductivity (BTU-in/ft²-hr-°F) (x 10-4 cal/cm-sec-°C) |
– – |
| UL94 | Flammability Rating | V-0 |
| ELECTRICAL | ||
| D149 | Dielectric Strength (V/mil) short time, 1/8″ thick | – |
| D150 | Dielectric Constant at 1 MHz | 5.33 |
| D150 | Dissipation Factor at 1 MHz | 0.227 |
| EOS/ESD S11.11 | Surface Resistivity (ohms/square) | 109 – 1011 |
| Mil-B-81705C | Max Static Decay (seconds) | < 2 |
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.