PEEK Unfilled

PEEK Unfilled


What is the Material: PEEK Unfilled is a semi-crystalline material.

Key Material Features: This material is beneficial in applications requiring wear resistance, dimensional stability, mechanical properties, chemical resistance, and temperature resistance.

Other Considerations: This material has notable hydrolysis/steam resistance.


Property Value Typical ASTM Test
Chemical Designation (PEEK) Polyetheretherketone
Trade Names (®, ™) Sustapeek, Tecapeek, Ketron, Semitron, Unitrex, PZL 1500, Victrex
Color Tan
Density (g/cm^3) 1.31 D 792


Property Value Typical ASTM Test
Modulus of Elasticity (Tensile Test) (psi) 650000 D 638
Tensile Strength at Yield (psi) 16000 D 638
Tensile Strength at Break (psi) 16000 D 638
Elongation at Yield (%) 4.9 D 638
Elongation at Break (%) 30 D 638
Flexural Strength (psi) 26000 D 790
Modulus of Elasticity (Flexural Test) (psi) 600000 D 790
Compression Strength: 10% Strain (psi) 20000 D 695
Compression Strength: 1% Strain (psi) 3400 D 695
Compression Modulus (psi) 493000 D 695
Impact Strength (Izod) (ft-lbs/in) 0.95 D 256
Hardness (R) 126 D 785
Hardness (M) 99 D 785
Coefficient of Friction (Kinetic, 40 psi, 50 fpm) 0.25 D 3702
Coefficient of Friction (Static) 0.2 D 3702
Wear (K) Factor (in^3-min/ft-lbs-hr) (Against Steel, 40 psi, 50 fpm) 2.00E-8 D 3702


Property Value Typical ASTM Test
Melting Point (°F) 633 D 3418
Deflection Temperature (°F) (66 psi) 360 D 648
Deflection Temperature (°F) (264 psi) 320 D 648
Service Temperature Continuous (°F) 480
Service Temperature Intermittent (°F) 572
Thermal Expansion (CLTE) (in/in/°F) 2.50E-5 D 696
Thermal Conductivity (BTU-in/hr-ft^2-°F) 2.01


Property Value Typical ASTM Test
Specific Surface Resistance (Ω/square) 1.00E16 D 257
Volume Resistivity (Ω*cm) 4.9E16 D 257
Dielectric Strength (V/mil) 630 D 149
Dissipation Factor (1MHz) 0.003 D 150
Dielectric Constant (1MHz) 3.3 D 150


Property Value Typical ASTM Test
Moisture Absorption (%) (24 Hours) 0.02 D 570
Moisture Absorption (%) (Saturated) 0.45 D 570
Flammability V-0
The data stated are typical values intended for reference and comparison purposes only. The data should not be used as a basis for design specifications or quality control. The information is provided as a guide to the best of our knowledge and given without obligation or liability. Testing under individual application circumstances is recommended.