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PEEK

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Technical Product Data Sheets

PEEK(polyetheretherketone) PEEK, a unique semi-crystalline, high-temperature engineering thermoplastic, is an excellent material for a wide spectrum of applications where thermal, chemical and combustion properties are critical to performance. Especially significant in this regard is PEEK’s ability to retain it flexural and tensile properties at very high temperatures — in excess of 250°C (482°F). The addition of glass fiber and carbon fiber reinforcements enhances the mechanical and thermal properties of the basic PEEK material.

Physical Properties ASTM Test Method Units PEEK PEEK
20% Glass Reinforced
PEEK
30% Glass Reinforced
PEEK
30% Carbon Reinforced
Density D792 lbs/cu in3 0.0477 0.0517 0.0538 0.0520
Water absorption:
24 hrs, 73°F
Equilibrium 73°F
D570
D570
%
%
0.5
0.5
—-
—-
0.11
—-
0.06
—-
Mechanical Properties ASTM Test Method Units PEEK PEEK
20% Glass Reinforced
PEEK
30% Glass Reinforced
 PEEK
30% Carbon Reinforced
Tensile Strength, 73°F D638 psi 13,300 17,800 22,800 30,200
Tensile Modulus, 1% Secant, 73°F D638 psi 522,100 1,015,200 1,406,800 1,885,400
Elongation, yield, 73°F D638 % 4.9 —- —- —-
Elongation, ultimate, 73°F D638 % 50.0 2.5 2.2 1.3
Flexural Strength, 73°F D790 psi 24,700 27,800 33,800 46,100
Flexural Modulus, Tangent, 73°F D790 psi 530,800 965,900 1,495,200 1,885,400
Compressive Strength, 73°F D695 psi 17,100 23,500 31,200 34,800
Shear Strength, Ultimate, 73°F D3846 psi 13,800 14,100 14,100
Izod Impact Strength, Notched, 73°F D256 ft-lbs/in. 1.55 1.61 1.8 1.6
Rockwell Hardness D785 —- M99 M102 M103 M107
Limiting PV @ 68°F, 1200 in/min —- (psi) (ft./min.) 170,000 —- —- 385,000
Coefficient of friction @ 68°F, 1200 in/min, 155 lbs. Load —- Static/Dynamic 0.18 —- —- 0.22
Thermal Properties ASTM Test Method Units PEEK PEEK
20% Glass Reinforced
PEEK
30% Glass Reinforced
PEEK
30% Carbon Reinforced
Heat Deflection @ 264 psi, 1/4″ D648 °F 235 545 600 600
Max. Continuous Use Temperature —- °F 482 482 482 482
Coefficient of Thermal Expansion D696 in./in./-°F 2.6 X 10-5 1.3 X 10-5 1.2 X 10-5 0.8 X 10-5
Melting Point —- °F 633 633 633 633
Thermal Conductivity —- BTU-in/hr-ft2°F 1.7 2.8 3.0 0.6
Flammability UL94 —- V-0 V-0 V-0 V-0
Electrical Properties ASTM Test Method Units PEEK PEEK
20% Glass Reinforced
PEEK
30% Glass Reinforced
PEEK
30% Carbon Reinforced
Volume Resistivity,  73°F D257 ohm-cm 4.9 X1016 —- —- 1.4 X1015
Dielectric Strength D149 V/mil 500 —- —- —-

Material Availability:

Rods: Length: 10 feet  – Diameters 1/4″ to 6″
Plates: 1/4″ to 2″ thickness inclusive are 24 X 48 inches
2 1/4″ to 4″ thickness inclusive are 12 X 48 inches
Profiles, tubes and special sizes are custom-produced on request

This information is only to assist and advise you on current technical knowledge and is given without obligation or liability. All trade and patent rights should be observed. All rights reserved.

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