TORLON® 4203 PAI / DURATRON® 4203 (ELECTRICAL GRADE POLYAMIDE-IMIDE)

TORLON® 4203 PAI / DURATRON® 4203 (ELECTRICAL GRADE POLYAMIDE-IMIDE)

Material Information

Torlon® 4203 PAI is an amorphous thermoplastic called a polyamide-imide. It is an extruded grade of Torlon®. Torlon® is the highest performing melt processable plastic and has superior resistance to elevated temperatures. It is able to perform with superior mechanical properties under severe stress conditions at continuous temperatures up to 500º F. Its glass transition temperature is 537º F. It also has good dimensional stability and creep, impact, and chemical resistance. However, Torlon® has a relatively high moisture absorption rate so it should be kept dry prior to insulation. Torlon® 4203 is the grade best suited for electrical or high strength applications. It specifically offers excellent compressive and impact strength and the highest elongation of the Torlon® grades. Because of its great electrical insulation, this grade is commonly used for electrical connectors and insulators.

Quadrant® EPP uses the brand name Duratron® T4203 for this material.

Application

  • Electrical connectors
  • Electrical insulators
  • Chip nests
  • Sockets
  • Wear applications
  • Linkages
  • Seal rings

Properties

  • Excellent compressive and impact strength
  • Excellent electrical insulation
  • High dielectric strength
  • Superior resistance to elevated temperatures
  • Good dimensional stability
  • Creep resistant
  • Self-lubricating
  • Lightweight
  • Good chemical resistance
  • Superior mechanical properties at elevated temperatures
  • Absorbs moisture

Physical

Astm Test Method

Duratron® T4203 PAI

Density (lb/in^3) D792 0.051
Specific Gravity D792 1.41
Water Absorption @ 24 hours (%) D570 0.4
Water Saturation (%) D570 1.7

Mechanical

Tensile Strength (PSI) D638 20,000
Tensile Modulus (PSI) D638 600,000
Tensile Elongation at Break (%) D638 10
Flexural Strength (PSI) D790 24,000
Flexural Modulus (PSI) D790 600,000
Shear Strength (PSI) D732 24,000
Compressive Strength (PSI) D695 24,000
Compressive Modulus (PSI) D695 478,000
Izod Impact (Notched), ft-lb/in D256 2
Rockwell Hardness D785 E80, M120
Coefficient of Friction (Dry vs Steel)
Dynamic
PTM 55007 0.35
Limiting PV (4:1 Safety Factor)
(ft-lb-in^2-min)
PTM 55007 12,500
Wear Factor “K” x 10^-10
(in^3-min/ft-lb-hr)
PTM 55010 50

Thermal

Coefficient of Thermal Expansion,
10^-5/°F
D696 1.7
Heat Deflection Temperature 264 psi, ºF D648 532
Glass Transition Temp, ºF D3418 527
Continous Service Temp (Operating), °F  - 500
Thermal Conductivity, BTU-in/hr-ft² °F F433 1.8
Flammability Rating UL94 VO

Electrical

Dielectric Strength, Short Term,
(Volts/Mil) @ .125″ Thick
D149 580
Surface Resistivity (ohms/square) EOS/ESD S11.11 > 10^16
Dielectric Constant at 1 MHz D150 4.2
Dissipation Factor at 1 MHz D150 0.026

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. All values at 73°F (23°C) unless otherwise noted.