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Torlon® 4203L / Electrical Grade Polyamide/imide Rod

Grade: Torlon® 4203L / Electrical Grade
Formula: PAI
Form: Rod
Material: Polyamide/imide (PAI)
Commodity: Polymers
Torlon® 4203L Polyamide/Imide Rods come in a choice of 43 variations. Torlon® rods are made from a high-performance thermoplastic that combines excellent mechanical properties and chemical resistance at high temperatures. They’re ideal for applications in the aerospace, automotive, and oil and gas industries, where parts need to withstand extreme environments. The different variations we offer allow you to select the optimal dimensions based on your specific application requirements.
Technical Data Sheet Safety Data Sheet Tolerance Properties
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Tolerances

Rod
Diameter +20% / -10%

Material Properties for Polymers

Chemical Resistance
Element Value
Acids - concentrated Fair-Poor
Acids - dilute Fair
Alcohols Good-Poor
Alkalis Poor
Aromatic hydrocarbons Good
Greases and Oils Good
Halogenated Hydrocarbons Good-Poor
Halogens Good-Poor
Ketones Good
Electrical Properties
Element Value
Dielectric constant @1MHz 3.9-5.4
Dissipation factor @ 1MHz 0.03-0.042
Dielectric strength( kV mm⁻¹ ) 23at 1mm
Surface resistivity( Ohm/sq ) 8-50 x 10¹⁷
Volume resistivity( Ohmcm ) 0.08-2 x 10¹⁷
Physical Properties
Element Value
Flammability V0
Radiation resistance Good
Resistance to Ultra-violet Good
Limiting oxygen index( % ) 44-45
Water absorption - equilibrium( % ) 03-Apr
Water absorption - over 24 hours( % ) 0.3
Density( gcm⁻³ ) 1.42-1.46
Mechanical Properties
Element Value
Hardness - Rockwell E72-86
Poisson's ratio 0.38
Elongation at break( % ) Jul-15
Tensile modulus( GPa ) 4.5-6.8
Izod impact strength( J m⁻¹ ) 60-140- notched
Tensile strength( MPa ) 110-190
Thermal Properties
Element Value
Heat-deflection temperature - 1.8MPa( C ) 278-9
Lower working temperature( C ) -200
Upper working temperature( C ) 200-260
Specific heat( J K⁻¹ kg⁻¹ ) 1000
Thermal conductivity( W m⁻¹ K⁻¹ ) 0.26-0.54@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 25-31
Pultrusions
Element Value
Compressive strength( MPa ) 170-220

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