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
| Property | Value |
|---|---|
| Tensile Strength | 100 MPa (14.5 ksi) |
| Yield Strength | 91 MPa (13.2 ksi) |
| Hardness | Rockwell M99 |
| Density | 1.31 g/cm³ |
| Machinability Rating | 60/100 |
| Thermal Conductivity | 0.25 W/m·K |
| Melting Point | 343 °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
Compatible CNC Processes
CNC Milling
Tolerance: ±0.02 mm (±0.001")
View Details→CNC Turning
Tolerance: ±0.02 mm (±0.001")
View Details→4.5-Axis CNC Machining
Tolerance: ±0.02 mm
View Details→Wire EDM
Tolerance: N/A
View Details→Rapid Prototyping
Tolerance: ±0.05 mm (prototype standard)
View Details→Surface Finishing
Tolerance: ±0.02 mm (finished)
View Details→Available Surface Finishes
As-MachinedPolishedBead Blast
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