PEEK is a Semi – crystalline thermoplastic with excellent mechanical and chemical resistance properties that are retained to high temperature . The processing condition used to mould PEEK can influence the crystallinity , and hence the mechanical properties .

Peek ‘s mechanical properties at elevated temperature have led to it being used in at least two varieties of extruder as thermal insulation . This means the main mechanical structure of the extruder can be made of the same material that is being extruded , provided that the PEEK insulator prevents heat from travelling beyond intended melt zone .A disadvantage is the high price , which limits its application to high value items .


Standard Diameter  (mm) 10mm to3  5mm to 300mm
Standard Length (mm) : 300mm , 600mm, 1000mm


  • Excellent dimensional stability
  • Hardly inflammable and self- extinguishing
  • Extremely low smoke density
  • Very high resistance to high- energy radiation
  • Outstanding sliding properties
  • Excellent abrasion resistance
  • High wear resistance
  • Optimised balance of stiffness ,tensile strength & impact strength .
  • Low creep tendency
  • Good machinability , thermoformability
  • High dimensional stability under heat
  • Extremely high continuously service temperature .


  • Fabricate items used in demanding applications
  • Including Bearings
  • Piston Parts
  • Pumps
  • HPLC Columns
  • Rotor Arms
  • Compressor Plates Valves
  • Medical Implants
  • Spinal fusion devices and reinforcing rods
  • Aerospace , Automotive , Teletronic and chemical process industries


Tensile strength psi D638 4,000 Psi D638 14000 24,620
Flexural modulus Psi D790 590000 1,450,000
Izod impact (notched) ft-lbs/in of notch D256 1.6 1.84
Heat deflection temperature@264 psi °F D648 306 599
Maximum continuous service temperature in air °F 480 482
Water absorption (immersion 24 hours) % D570 0.50 0.11
Coefficient of linear thermal expansion in/in/°Fx10-5 D696 2.6 1.2
Coefficient of friction  (dynamic) 0.25 0.30