The TexLoc Library
PEEK™ Properties
 

The table below lists a generally accepted summary of properties that we believe to be reliable. Please note that many of these resins are produced in several varieties and property characteristics may vary. Therefore, determination of resin is dependent on the application and this table is only meant to serve as a general guideline.

 
 

PEEK™ Detailed Properties
(Polyetheretherketone)

Properties ASTM or Unit PEEK™
MECHANICAL PROPERTIES
Specific Gravity D792 1.30~1.32
Elongation % D638 20~60
Tensile Strength (psi) D638 14,065~14,500
Flexural Strength (psi) D790 24,650
Compressive Strength

D695

17,110
Tensile Elastic Modulus 
(Young's Modulus) (psi)
D638 522,000
Flexural Modulus
(psi)
D790 580,000~594,500
103MPa(103kgf/m2)
Flex Life
(MIT cycles)
D2176 n.a
Hardness Durometer Shore D D636 D85~86
Coefficient of Friction
 on steel
D1984 0.18
(Dynamic)
Abrasion Resistance
1000 revs.
Taber n.a
Impact Strength IZOD
73F/23C, notched ft/lbs/in
D256 1.6
THERMAL PROPERTIES

Melting Point C
(F)
340
(644)
Upper Service
Temperature(20,000h)
C
(F)
260
(500)
Flame Rating** UL 94 V-0
Thermal Conductivity
 
BTU/hr/ft2/deg F in 1.73
cal/sec/cm2,C/cm n.a
Linear Coefficient of Thermal Expansion D696 2.6
10-5 F-1
Heat of Fusion BTU/LB n.a
Heat of Combustion BTU/LB n.a
Low Temperature Embrittlement C
(F)
na
na
ELECTRICAL PROPERTIES

Dielectric Constant 50Hz-10kHz

3.20~3.30

D150/106Hz n.a.
Dielectric Strength
10 mil film
D149 >500
Volume Resistivity
ohm-cm
D257 4.9 x 1016
Surface Resistivity
ohm/sq.
D257 2.0 x 1016
GENERAL PROPERTIES

Chemical/Solvent
Resistance
D543 Excellent
Water Absorption, 24h,% D570 0.5
Refractive Index   2.15
Limiting Oxygen Index % D2863 24
Properties ASTM or Unit PEEK™
 
 
 
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