Properties

Polyetheretherketone 
/PEEK

Topics   Index

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Copyright 2002 by Roger D. Corneliussen
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Values are from Modern Plastics Encyclopedia 99.

To jump to a particular property, click on the name listed below.

Melt Flow
Melting Temperature
Glass Transition
Processing Molding Pressure
Processing Molding Temperature
Compression Ratio
Mold Shrinkage
Tensile Strength
Elongation
Tensile Yield Strength
Compressive Strength
Flexural Strength
Tensile Modulus
Flexural Modulus
Izod Impact Strength
Hardness
Deflection Temperature
Thermal Expansion
Thermal Conductivity
Specific Gravity
Dielectric Strength
Water Absorption

Note: The ASTM numbers are linked to 
their descriptions on the ASTM website.  
To go to the description, simply
click on the ASTM number

Melt Flow 
ASTM D1238
(gm/10 min)

--- gm /10 min

Melting Temperature  degrees C
Tm Crystalline
334 C

Glass Transition (C)
Tg (Amorphous)

--- C

Processing Temperature Range Degrees F
Extrusion

660 to 750 F for injection molding
660 to 720 F for extrusion

Molding Pressure Range ( PSI) (ksi)
10000 to  20000 psi
10 to 20 ksi
67 to 134 MPa

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Compression Ratio
3

Mold(Linear) Shrinkage (in/in)
ASTM D955
0.011 in/in

Tensile Strength at Break
ASTM D638
10200 to 15000 psi
68 to 100 MPa

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Elongation at break (%)
ASTM D638
30 to 150 %

Tensile Yield Strength (psi)
ASTM D638
13200 psi
88 MPa

Compressive Strength (psi)
Rupture or Yield
ASTM D695
18000  psi
120 MPa

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Flexural Strength (psi)
Rupture or Yield
ASTM D790
16000  psi
107 MPa

 Tensile Modulus (psi)
ASTM D638
--- psi
--- GPa

To go to Modulus Values,
click on
Modulus

Compressive Modulus (psi)
ASTM D695
--- psi
--- GPa

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Flexural Modulus (psi)
ASTM D790
At 73 F
560000 psi
3.7 GPa
At 200 F
435000 psi
2.9 GPa
At 300 F
290000 psi
1.9 GPa

Izod Impact (ft-lb/in of notch)
ASTM D256

1.6 ft lb/in of notch

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Hardness
Rockwell ASTM D785
---
--
Shore D65 ASTM D2240/D2583
---

Coefficient of Linear Thermal Expansion
(10 exp-6 )in/in/C
(<150 C)40 to 47 (10 x exp 6) in/in /C
0.000 040 to 0.000 047  in/in /C
(>150 C) 108 (10 x exp 6) in/in /C
0.000 108  in/in /C

Deflection Temperature under flexural load (F)
ASTM D648
264 psi ---
320 F
66 psi  ---
--- F

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Thermal Conductivity
(10 x exp 4)al cm/sec cm2 C
ASTM C177
--- (10 x exp 4) cal cm/sec cm2
---   cal cm/sec cm2

Specific Gravity
ASTM D792
1.30 to 1.32

To go to Density /Specific Gravity Values,
click on
Density

Water Absorption
(1/8 in thick specimen) (%)
ASTM D570
24 hr --- 0.1 to 0.14 %
Saturation 
0.5  %

Dielectric Strength v/mil
(1/8 in thick Specimen; short time)
--- v/mil

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Topics   Index

**************************************
Copyright 2002 by Roger D. Corneliussen
No part of this transmission is to be
duplicated, in any manor, or forwarded by
electronic mail without the express written
permission of Roger D. Corneliussen
**************************************

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