| Chemical Designation |
Polyetherimide
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| DIN Abbreviation |
PEI
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| Colour, Filler |
brown, translucent
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| Stock Availabilty | ||||
| Main Characteristics | ||||
| Preferred Fields | ||||
| Applications | ||||
| MECHANICAL | ||||
| Properties |
Unit
|
Test method
DIN ASTM |
||
| Density |
g/cm3
|
53 479
|
1.27
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| Tensile strength/ yield |
MPa
|
53 455
|
105
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| Tensile strength/ break |
MPa
|
53 455
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| Elongation / break |
%
|
53 455
|
60
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|
| Modules of elasticity/tension |
MPa
|
53 457
|
3100
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|
| Modules of elasticity/flexure |
MPa
|
53 457
|
3300
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|
| Ball indentation hardness |
MPa
|
53 456
|
165
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|
| Impact strength (charpy) |
kJ/m2
|
53 453
|
no.br
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| Creep rupture strength /1000 hrs static load |
MPa
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| Time yield 1% elongation/1000hrs |
MPa
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| Coefficient of friction/ hardened & ground steel |
-
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| Wear/ as above |
mm/km
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| THERMAL | ||||
| Properties |
Unit
|
Test method
DIN ASTM |
||
| Crystaline melting point |
ºC
|
53 736
|
215
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|
| Glass transition temperature |
ºC
|
53 736
|
180
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| Heat distortion temperature | Method A |
ºC
|
ISO 75
|
200
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| Method B |
ºC
|
ISO 75
|
182
|
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| Field33 | ||||
| Maximum service temperature | short term |
ºC
|
200
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| long term |
ºC
|
170
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| Coefficient of thermal conductivity |
W/(m.K)
|
0.22
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| Specific heat |
J(g.K)
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| Coefficient of thermal expansion |
10-5/K
|
5.6
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| ELECTRICAL | ||||
| Properties |
Unit
|
Test method
DIN ASTM |
||
| Dielectric constant at 105 HZ |
53 483
|
3.5
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| Dielectric loss factor 105 HZ |
S.cm
|
53 483
|
1.001
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| Specific volume resistance |
S
|
53 482
|
6.90E+17
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| Surface resistance |
53 482
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| Dielectric strength 1 mm |
KV/mm
|
53 481
|
33
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| Tracking resistance |
53 480
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| MISCELLANEOUS | ||||
| Properties |
Unit
|
Test method
DIN ASTM |
||
| Moisture absorption |
%
|
53 714 |
0.25
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| Water absorption at saturation at 23 §C |
%
|
53 495 |
1.25
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| Resistance to hot water, washing soda |
resistant
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| Flammibilty | UL 94 |
VO
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| Resistance to weathering |
resistant
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| Compliance | ||||