PEEK (Polyether Ether Ketone)

PEEK is an ultra-high-performance semicrystalline thermoplastic with exceptional chemical resistance, high temperature stability up to 260°C continuous, and excellent mechanical properties. It is the premium engineering plastic for extreme environments.

Machinability

60/100

Tolerance

±0.02 mm

Category

Engineering Plastics

Material Properties

PropertyValue
Tensile Strength100 MPa (14.5 ksi)
Yield Strength91 MPa (13.2 ksi)
HardnessRockwell M99
Density1.31 g/cm³
Machinability Rating60/100
Thermal Conductivity0.25 W/m·K
Melting Point343 °C
Tolerance±0.02 mm

Common Grades

PEEK 450GPEEK 150GPEEK-CF30PEEK-GF30

Advantages

  • Extreme temperature resistance (260°C continuous)
  • Chemical inert
  • Biocompatible
  • Excellent fatigue resistance
  • Low outgassing

Limitations

  • Very expensive ($100+/kg)
  • Requires specialized tooling
  • Moisture absorption affects dimensions
  • Limited color options

Common Applications

Aerospace bearings

Medical implants

Semiconductor fixtures

Valve seats

Electrical insulators

Industries Served

AerospaceMedicalSemiconductorOil & GasAutomotive

Available Surface Finishes

As-MachinedPolishedBead Blast

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