GENERAL DESCRIPTIONTorlon ® PAI is the highest performing melt processable plastic. It has superior resistance to elevated temperatures. It is capable of performing under severe stress conditions at continuous temperatures to 500°F (260°C). Parts machined from Torlon ® PAI stock shapes provide greater compressive strength and higher impact resistance than most advanced engineering plastics. Its extremely low coefficient of linear thermal expansion and high creep resistance deliver excellent dimensional stability over its entire use range. PAI is an amorphous material with a Tg (glass transition temperature) of 537°F (280°C).
Torlon 4301 PAI (Extruded)
Torlon ® 4301 extruded PAI is primarily used for wear and friction parts. It offers a very low expansion rate, low coefficient of friction and exhibits little or no slip-stick in use. Torlon ® 4301's flexural modulus of 1,000,000 psi is higher than most other advanced engineering plastics. This grade excels in severe service wear applications such as non- lubricated bearings, seals, bearing cages and reciprocating compressor parts.
Torlon ® 4301 extruded PAI is the same formulation as compression molded Torlon 4501 PAI, but has been made into stock shapes using a different manufacturing process. The resulting material is similar to 4501, but has slightly different mechanical properties. See Torlon 4501 Compression Molded PAI datasheet for comparison, or these two bearing grades side-by-side here.
Extruded Torlon ® 4301 is typically only available in thin sheets and small diameter rods. Check with us for availability of 4301 in the size you need. (see also Duratron T4301 PAI)
TYPICAL PROPERTIES of TORLON® 4301 PAI POLYAMIDE-IMIDE
|ASTM or UL test||Property||DTorlon 4301 PAI
|D570||Water Absorption, 24 hrs (%)||0.4|
|D570||Water Absorption, Saturation (%)||1.5|
|D638||Tensile Strength (psi)||15,000|
|D638||Tensile Modulus (psi)||900,000|
|D638||Tensile Elongation at Break (%)||3.0|
|D790||Flexural Strength (psi)||23,000|
|D790||Flexural Modulus (psi)||800,000|
|D732||Shear Strength (psi)||16,400|
|D695||Compressive Strength (psi)||22,000|
|D695||Compressive Modulus (psi)||950,000|
|D256||IZOD Notched Impact (ft-lb/in)||0.8|
|PTM 55007||Coefficient of Friction (Dry vs. Steel) Dynamic||0.20|
|PTM 55007||Limiting PV (4:1 Safety Factor) (ft-lb-in2-min||22,500|
|PTM 55010||Wear Factor "k" x 10-10(in3-min/ft-lb-hr||10|
|D696||Coefficient of Linear Thermal Expansion
(x 10-5 in./in./°F)
|D648||Heat Deflection Temp (°F / °C)
at 264 psi
534 / 277
|D3418||Glass Transition Temp (°F / °C)||527 / 275|
|-||Max Operating Temp (°F / °C)||500 / 260|
(x 10-4 cal/cm-sec-°C)
|D149||Dielectric Strength (V/mil) short time, 1/8" thick||-|
|D150||Dielectric Constant at 1 MHz||6.0|
|D150||Dissipation Factor at 1 MHz||0.037|
|EOS/ESD S11.11||Surface Resistivity (ohms/square)||> 1013|
NOTE: The information contained herein are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers' complete material property datasheets.DURATRON is a registered trademark of Quadrant Engineering Plastic Products.
All values at 73°F (23°C) unless otherwise noted.