Material datasheet · High-performance semi-crystalline thermoplastic
PolyEtherEtherKetone
UNS — · Extruded or compression-molded; stress-relief annealing for tight tolerances
Premium engineering thermoplastic. Continuous service to 250°C. The non-metal answer for harsh environments.
Chemical composition
Nominal % by weight.
| Element | % by wt |
|---|---|
| Polyetheretherketone | — |
Applicable specifications
AMS / ASTM / MIL.
- ASTM D6262 (PAEK basic shapes)
- Victrex 450G
- USP Class VI
- ASTM F2026 (medical implant)
Machining guidance
CNC parameters and tooling.
Sharp polished carbide; PCD for high-volume
Anneal stock at 400°F before machining for stability. Glass/carbon-filled grades wear tools faster.
Stock & cost
Forms and Q1 2026 pricing.
- Color (PEEK 450G natural beige; pigmented grades available)
Typical applications
Where PEEK is the right pick.
- Aerospace seals & bearings
- Medical implants (spinal cages)
- Semiconductor wafer handlers
- Oil & gas downhole
Alternative materials
Substitute or upgrade options.
- Ultem (cheaper, lower T)
- PI Vespel (higher T, lower strength)
- PPS (chemical resistance)
Digital Machine · Quick-Turn CNC · California
Machine your part in PEEK.
Production CNC milling and turning. Confirm material, inspection and documentation requirements when requesting a quote.
Keep exploring
Related tools & references
Speeds, feeds, tooling, and chip strategy.
SFM, RPM, and feed rate for this material.
Compare alloys by strength, weight, temperature, and cost.
Estimate part weight from PEEK stock.
Aerospace specs that call out this alloy.