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PTFE Datasheet:
| Properties |
Method |
Unit |
Typical Values (from-to) |
| Impact strength (Izod) plus 57°C |
ASTM D256 |
J/cm |
1,10 |
| Impact strength (Izod) plus 23°C |
ASTM D256 |
J/cm |
1,60 |
| Impact strength (Izod) plus 77°C |
ASTM D256 |
J/cm |
3,30 |
| Temperature of distortion 0,46 N/mm2 |
ASTM D648 |
°C |
plus 130 - plus 140 |
| Temperature of distortion 1,85 N/mm2 |
ASTM D648 |
°C |
plus 50 - plus 60 |
| Flammability ATB |
ASTM D635 |
sec |
<5,00 |
| Flammability AEB |
ASTM D635 |
sec |
<5,00 |
| Specific heat 0°C |
- |
KJ/kg.K |
0,96 |
| Specific heat 50°C |
- |
KJ/kg.K |
1,05 |
| Volume resistivity |
ASTM D257 |
Ohm/cm |
10-17 |
| Surface resistivity |
ASTM D257 |
Ohm |
10-15 |
| Friction coefficient - static |
ASTM D3028 (2) |
- |
0,09 |
| Friction coefficient - dynamic |
ASTM D3028 (2) |
- |
0,05 |
| Hardness |
ASTM D2240 |
(shoreD) |
50 - 60 |
| Arc-resistance |
ASTM D495 |
sec |
OK (4) |
| Water absorption |
ASTM D570 |
% |
<0,01 |
| Dielectric strength (short-time air thickness 0,5mm) |
ASTM D149 |
kV/mm |
55 |
| Dielectric constant |
ASTM D150 |
- |
2,10 |
| Dissipation factor |
ASTM D150 |
- |
<0,0002 |
| Specific gravity |
ASTM D792 |
- |
2,14 - 2,20 |
| Tensile strength |
ASTM D1457 |
N/mm2 |
20 - 35 |
| Increase in volume from room temperature to molten state (plus 340°C) |
- |
% |
27 - 28 |
| Thermal conductivity |
ASTM D2214 |
W/mK |
0,20 |
| Coefficient of thermal expansion from plus 25 to plus 100°C |
ASTM E831 |
°C-1 |
16 x 1-5 |
| Flexural strength 0,7 N/mm2 |
ASTM D790 |
N/mm2 |
no break |
| Elongation at break |
ASTM D1457 |
% |
210 - 400 |
| PTFE - steel oil lubricated |
- |
- |
0,02 - 0,06 |
| Working temperature range |
- |
°C |
-200 - +260 |
| Compressive strength 1% deformation |
ASTM D695 |
N/mm2 |
4,00 - 4,50 |
| Deformation under load 14 N/mm2 for 24hrs |
ASTM D621(1) |
% |
10 - 15 |
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