GENERAL PROPERTIESTorlon ® 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 ® 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. Torlon ® is an amorphous material with a Tg (glass transition temperature) of 537°F (280°C).
Depending upon the method used to produce a stock shape (sheet, rod, or tube), the properties of the resulting material can vary. Generally speaking, the best mechanical properties are exhibited by injection molded material. However, the process used is generally defined by the size and shape of the desired material. For example, small diameter rod and thin sheets are extruded -- larger shapes are compression molded. See the following descriptions and properties table for details.
TORLON ® ELECTRICAL GRADES (UNFILLED)Torlon 4203 PAI (Extruded)
Torlon ® 4203 extruded PAI offers excellent compressive strength and the highest elongation of the Torlon ® grades. It also provides electrical insulation and exceptional impact strength. This grade is commonly used for electrical connectors and insulators due to its high dielectric strength.
Extruded Torlon ® 4203 is typically only available in thin sheets and small diameter rods. Check with us for availability of 4203 in the size you need. (see also Duratron T4203 PAI)
Torlon 4503 PAI (Compression Molded)
Torlon ® 4503 compression molded PAI is the same formulation as 4203, but has been made into stock shapes using a different manufacturing process. The resulting material is similar to 4203, but has slightly different mechanical properties (see datasheet below).
Compression-molded Torlon ® 4503 is typically available only in larger diameter rods (in short lengths), thicker sheets, and large (but short length) tubes. Check with us for availability of 4503 in the size you need. (see also Duratron T4503 PAI)
TYPICAL PROPERTIES of TORLON® PAI ELECTRICAL GRADES
|ASTM or UL test||Property||Torlon® 4203
|D570||Water Absorption, 24 hrs (%)||0.40||0.35|
|D638||Tensile Strength (psi)||18,000||18,000|
|D638||Tensile Modulus (psi)||600,000||500,000|
|D638||Tensile Elongation at Break (%)||5||5|
|D790||Flexural Strength (psi)||24,000||24,000|
|D790||Flexural Modulus (psi)||600,000||600,000|
|D695||Compressive Strength (psi)||24,000||18,000|
|D695||Compressive Modulus (psi)||478,000||350,000|
|D256||IZOD Notched Impact (ft-lb/in)||2.0||1.5|
|D696||Coefficient of Linear Thermal Expansion
(x 10-5 in./in./°F)
|D648||Heat Deflection Temp (°F / °C)
at 264 psi
532 / 278
532 / 278
|D3418||Glass Transition Temp (°F / °C)||527 / 275||527 / 275|
|-||Max Operating Temp (°F / °C)||500 / 260||500 / 260|
(x 10-4 cal/cm-sec-°C)
|D149||Dielectric Strength (V/mil) short time, 1/8" thick||580||600|
|D150||Dielectric Constant at 1 MHz||4.2||4.2|
|D150||Dissipation Factor at 1 MHz||0.026||0.031|
|D257||Volume Resistivity (ohm-cm)at 50% RH||> 1016||> 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.