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Torlon Grades

Torlon combines the exceptional performance of thermoset polyimides with the melt-processing advantage of thermoplastics. Wear-resistance grades offer unsurpassed performance in both dry and lubricated environments. High-strength grades retain their toughness, high strength, and high stiffness up to 275 °C (525 °F), making PAI the industry's highest performing thermoplastic. Its broad chemical resistance includes strong acids and most organics. Some of the other benefits associated with Torlon PAI high-performance plastics include:

  • High impact resistance
  • Superior compressive strength
  • High creep resistance
  • Extremely low coefficient of linear thermal expansion (CLTE)
  • Superior toughness at cryogenic temperatures
  • Outstanding resistance to aviation and automotive fluids
  • Excellent wear resistance in bearing grades

Torlon High-Temperature Wear Resistance

Overall, Torlon polyamide-imide (Quadrant® Duratron® PAI) provides excellent chemical resistance and high thermal stability to successfully replace metal in high-temperature friction and wear applications, even when lubrication is marginal or non-existent.

Torlon Extreme Chemical Resistance

Torlon PAI is virtually unaffected by aliphatic and aromatic hydrocarbons, chlorinated and fluorinated hydrocarbons, and most acids at moderate temperatures. However, the polymer may be attacked by saturated steam, strong bases, and some high-temperature acid systems. Proper post-cure of Torlon parts is necessary to achieve optimal chemical resistance.

Torlon PAI Applications

Unlike other commercial thermoplastics, Torlon® PAI high-performance plastics retain usable mechanical properties up to 275°C (525°F). It is also easier to process because it can be injection molded, which means lower unit costs for replicated parts. Some of the direct applications for Torlon polyamide-imide (Quadrant® Duratron® PAI) include:

  • Automotive transmissions
  • Jet engines
  • Oil recovery
  • Off-road vehicles
  • Heavy-duty equipment
  • And more

thyssenkrupp Materials NA Canada offers advanced quality Torlon PAI in a wide range of grades to suit your individual project needs. The grades of Torlon polyamide-imide (Quadrant® Duratron® PAI) that we offer include:

High Strength Torlon

  • Duratron T4203 - General purpose, unfilled, best impact resistance, most elongation, good mold release, good electrical properties.
  • Duratron T4503 - Compression Molded. Similar to 4203 but has slightly different mechanical properties.
  • Duratron T5030 - 30% glass fiber, high stiffness, high strength, good retention of stiffness at high temperatures, very low creep.
  • Duratron T5530 - Developed by and exclusive to Quadrant®.
  • Duratron T7130 - 30% carbon fiber, best stiffness, best retention of stiffness at high temperatures, best fatigue resistance, electrically conductive.

Wear Resistant Torlon

  • Duratron T4301 - General purpose wear-resistance, contains PTFE and graphite.
  • Duratron T4501 - Developed by and exclusive to Quadrant®.
  • Duratron T4540 - Developed by and exclusive to Quadrant®.

Torlon Specialty Grades

  • Semitron® ESd 520HR - Developed by Quadrant® for semicon device testing.
  • Semitron® CMP XL20 - Developed by Quadrant® for semicon CMP processing.

Jump to a specific grade

Duratron-T4203

T4203 is an unfilled Torlon® grade valued for its toughness, electrical insulation, and dimensional stability. It performs well in structural components and electrical insulators where high impact and thermal resistance are important.

Shapes Offered

Duratron-T4503

T4503 is a compression-molded version of T4203 is suited for larger, load-bearing parts that require strength, reliability, and tight dimensional control in thermal or chemically aggressive settings.

Shapes Offered

Duratron-T5030

Reinforced with 30% glass fibre, T5030 offers strength, rigidity, and low creep under continuous load. It’s used in structural applications where mechanical precision must be maintained at elevated temperatures.

Shapes Offered

Duratron-T5530

A proprietary glass-reinforced formula developed by Quadrant®, T5530 is built for industrial use in high-load, high-temperature environments. It holds shape under stress and resists dimensional drift.

Shapes Offered

Duratron-T7130

T7130 is reinforced with 30% carbon fibre, giving it high stiffness, thermal resistance, and excellent fatigue life. It also offers static dissipative properties, making it suitable for mechanical components in sensitive electronic systems.

Shapes Offered

Duratron-T4301

Formulated with PTFE and graphite, T4301 provides wear resistance and low friction in dry or marginally lubricated conditions. It's commonly used in sliding parts, wear rings, and seals.

Shapes Offered

Duratron-T4501

This wear-grade Torlon® was created to meet long-service expectations in high-load mechanical environments. It retains its shape and surface integrity over time.

Shapes Offered

Duratron-T4540

Another Quadrant®-specific formulation, T4540 offers durability for parts exposed to repetitive movement, abrasion, and friction, especially in thermally stressed setups.

Shapes Offered

Semitron-ESd-520HR

Developed for test sockets and nests, this static-dissipative material maintains electrical consistency across varying humidity levels. It machines precisely and holds tight tolerances.

Shapes Offered

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