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Material Data Sheet

Material: Torlon® 4203 PAI


Torlon® 4203 PAI offers the highest elongation of the Torlon® grades and has excellent compressive strength. Some application for this grade of Torlon include electrical insulators and connectors. Torlon also has the ability to work as a structural material due to its ability to carry high loads orver a broad range of temperatures. It also works good as a bearing and wear material where application involve impact loading and abrasive wear.

Mechanical Properties Test Method ASTM Value Units

Specific Gravity, 73°F D792 1.41
Tensile Strength, 73°F D638 20,000 psi
Tensile Modulus of Elasticity, °F D638 600,000 psi
Tensile Elongation ( at break), 73°F D638 10 %
Flexural Strength, 73°F D790 24,000 psi
Flexural Modulus of Elasticity, 73°F D790 600,000 psi
Shear Strength, 73°F D732 16,000 psi
Compressive Strength, 10% Deformation, 73°F D695 24,000 psi
Compressive Modulus of Elasticity, 73°F D695 478,000 psi
Hardness, Rockwell, Scale as noted, 73°F D785 E80 (M120)
Hardness, Durometer, Shore "D" Scale, 73°F D2240

Izod Impact (notched), 73°F D256 Type A 2 ft-lb/in of notch
Coefficient of Friction (Dry vs. Steel) Dynamic QTM 55007 0.35
Limiting PV (with 4:1 safety factor applied) QTM 55007 12,500 ft.lbs./in.2 min
Wear Factor "k" x 10-10 QTM 55010 50 in.3-min/ft.lbs.hr

Thermal Properties

Coefficient of Linear Thermal Expansion (-40°F to 300°F) E-831 (TMA) 1.7 x 10-5 in/in./°F
Heat Deflection Temperature 264 psi D648 532 °F
TG-Glass transition (amorphous) D3418 527 °F
Melting Point (Crystalline) peak D3418 N/A °F
Continuous Service Temperature in Air (Max.) (1)
500 °F
Thermal Conductivity F433 1.8 BTU-in/hr-ft²-°F

Electrical Properties

Dielectric Strength, Short Term D149 580 Volts/mil
Surface Resistivity EOS/ESD S11.11 >1016 ohm/square
Dielectric Constant, 106 Hz D150 4.2
Dissipation Factor, 106 Hz D150 0.03
Flammability @ 3.1 mm (1/8 in.) UL 94 V-0
FDA Compliant
*The values shown in these and the following charts are typical, average properties. Actual values may differ due to variations in resin formulations and processing methods. These values are obtained from sources believed to be reliable, including the resin manufactures, converters and other published sources. However, they should not be used for specification or design purposes.
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