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Vespel® Extended Properties
| General |
|
Comments |
Units |
|
|
| Water Absorption |
for 24 hr. immersion |
ISO 62 |
% |
24 |
| Density |
|
ISO 1183 |
g/cc |
1.43 |
| Mositure Absorption |
at Equilibrium |
50% RH |
% |
1.2 |
| Hardness |
Rockwell M |
ISO 2039-2 |
- |
100 |
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| Mechanical |
|
Comments |
Units |
|
|
| Tensile Strength |
Ultimate |
ISO 527 |
MPa(psi) |
86(12,473) |
| Elongation % |
Break |
ISO 527 |
% |
75 |
| Modulus of Elasticity |
GPa |
ISO 527 in Tension |
ksi |
319 |
| Impact Strength |
Charpy, J/cm2 |
ISO 179/1eA |
ft-lb/in2 |
1.7 |
| Impact |
Unnotched Charpy, J/cm2 |
No break per ISO 179, 1eU |
ft-lb/in2 |
4,755 |
| Compressive Yield Strength |
|
at 1%; ISO 604 |
psi |
3,336 |
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| Thermal |
|
Comments |
Units |
|
|
| Coefficient of Thermal Expansion |
20°C, µm/m-°C
100°C, µm/m-°C |
avg value between 23 & 100°C
avg value between 23 & 150°C |
µin/in-°F
µin/in-°F |
25
25 |
| Deflection Temperature |
at 1.8MPa, °C |
ISO 75 method A |
°F |
680 |
| Maximum Service Temperature |
Air, °C
450°C for short periods
240°C for 20,000 hours continuous |
-
-
- |
-
°F
°F |
-
842
842 |
| Thermal Conductivity |
BTU-in/ft2-hr-°F |
- |
°F |
2.4 |
| Oxygen Index |
|
ISO 4589 |
% |
53 |
| Flammability Rating, UL94 |
5=V-0;4=V-1;3=V-2;1=HB |
at 1.5 & at 3mm thickness |
V-0 |
5 |
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| Electrical |
|
Comments |
Units |
|
|
| Electrical Resestivity |
|
IEC 93 |
Ohm-cm |
1E+61 |
| Surface Resistance |
|
IEC 93 |
Ohm |
1E+15 |
| Dielectric Constant |
1 MHz
Low Frequency, 100 Hz |
IEC 250
IEC 250 |
-
- |
3.6
3.6 |
| Dielectric Strength |
kV/mm |
IEC 243 |
kV/in |
711 |
| Dissipation Factor |
1 MHz
Low Frequency, 100 Hz |
IEC 250
IEC 250 |
-
- |
0.003
0.002 |
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