Materials and Tools
Polyethylene
Polyethylene tubing has good chemical resistance. Take caution when using chlorinated solvents and some cyclic compounds.
| Temperature Range | up to 100 °C |
|---|---|
| Thread Strength | N/A |
| Oxygen Permeability | 500 cc-mil/100in_-24hr-atmcc-mil/100in_-24hr-atm |
| pH Range | 1-10 |
| Sterilization Techniques | Gamma irradiation, ethylene oxide |
| Autoclavable? | N |
Polyethylene Extended Properties
| General | Comments | Units | ||
|---|---|---|---|---|
| Density | ASTM D792 | g/cc | 0.92 | |
| Melt Flow | 1.05kg/190 °C | g/10 min. | 6.6 | |
| Water Absorption | 24 hour | ASTM D570 | % | 0.1 |
| Hardness, Shore D | ASTM D2240 | - | 54 | |
| Mechanical | Comments | Units | ||
| Elongation | Break | ASTM D638 | % | 610 |
| Modulus of Elasticity | ASTM D638 | GPa(ksi) | 1.5(2.2) | |
| Flexural Modulus | ASTM D790 | GPa(ksi) | 35.3(51.2) | |
| Flexural Yield Strength | ATSM D790 | MPa(psi) | 11.8(1710) | |
| Izod Impact Strength | Notched, room temp. | ATSM D256 | ft-lb/in | 8.5 |
| Thermal | Comments | Units | ||
| Coefficient of Thermal Expansion | linear 20 °C | µm/m- °C | 10.1 | |
| Deflection Temperature | at 0.46 MPa | ASTM D648 | °C(°F) | 45(316) |
| Maximum Service Temperature | Deflection Temp at 1.8 MPa | - | °C(°F) | 158(316) |
| Vicat Softening Temperature | ASTM D1525 | °C(°F) | 98(208) |