PAI Unfilled

PAI Unfilled


What is the Material: PAI Unfilled is an imidized amorphous material.

Key Material Features: This material is beneficial in applications requiring high strength, dimensional stability, diverse chemical resistance, and it maintains its properties at elevated temperatures.

Other Considerations: This material is attacked by hot water and steam.


Property Value Typical ASTM Test
Chemical Designation (PAI) Polyamide-imide
Trade Names (®, ™) Torlon, Tecapai, Duratron
Color Yellow/Green
Density (g/cm^3) 1.41 D 792


Property Value Typical ASTM Test
Modulus of Elasticity (Tensile Test) (psi) 600000 D 638
Tensile Strength at Yield (psi) 20000 D 638
Elongation at Break (%) 10 D 638
Flexural Strength (psi) 21000 D 790
Modulus of Elasticity (Flexural Test) (psi) 600000 D 790
Compression Strength: 10% Strain (psi) 24000 D 695
Compression Strength: 1% Strain (psi) 4500 D 695
Compression Modulus (psi) 478000 D 695
Impact Strength (Izod) (ft-lbs/in) 1.2 D 256
Hardness (D) 90 D 785
Hardness (E) 80
Hardness (M) 120 D 785
Coefficient of Friction (Kinetic, 40 psi, 50 fpm) 0.19 D 3702
Coefficient of Friction (Static) 0.18 D 3702
Wear (K) Factor (in^3-min/ft-lbs-hr) (Against Steel, 40 psi, 50 fpm) 3.50E-9 D 3702


Property Value Typical ASTM Test
Glass Transistion Temperature (°F) 529 D 3418
Deflection Temperature (°F) (264 psi) 494 D 648
Service Temperature Continuous (°F) 500
Thermal Expansion (CLTE) (in/in/°F) 2.15E-5 D 696
Thermal Conductivity (BTU-in/hr-ft^2-°F) 1.80


Property Value Typical ASTM Test
Specific Surface Resistance (Ω/square) 1.00E13 D 257
Dielectric Strength (V/mil) 348 D 149
Dissipation Factor (1MHz) 0.026 D 150
Dielectric Constant (1MHz) 4.2 D 150


Property Value Typical ASTM Test
Moisture Absorption (%) (24 Hours) 0.4 D 570
Moisture Absorption (%) (Saturated) 1.7 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.