Polypropylene
Typical Properties of HDPE & Polypropylene
|
Property |
Test Method |
HDPE |
Polypropylene |
|
Mechanical Properties |
|||
| Density (g/cc) | ASTM D792 | 0.963 | 0.91 |
| Tensile Strength (p.s.i.) | ASTM D638 | 4,500 | 4,900 |
| Elongation at Break (%) | ASTM D638 | 250 | 50-250 |
| Flexural Modulus (p.s.i.) | ASTM D790 | 233,000 | 210,000 |
| Izod Impact (ft-lbs/in2) | ASTM D256 | 3.2 | 1.5 |
| Rockwell Hardness | ASTM D785 | 65 | 95 |
|
Thermal Properties |
|||
| Heat Distortion at 66 psi (°F) | ASTM D648 | 175 | 210 |
| Heat Distortion at 264 psi (°F) | ASTM D648 | 118 | 120 |
| Coefficient of Linear Thermal Expansion (in/in/°C) | ASTM D696 | 0.00007 | 0.000145 |
|
Electrical Properties |
|||
| Volume Resistivity (Ohm-cm) | ASTM D257 | >6×1016 | >1016 |
|
Water Absorption Rates |
|||
| Water Absorption -24 hrs. (%) | ASTM D570 | 0.01 | – |
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.