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High Grade PEEK for Aerospace Components

Polyether Ether Ketone (PEEK) is a high-performance polymer recognized for its excellent strength-to-weight and dimensional accuracy. Its high machinability and compatibility with finishing techniques make it a preferred choice for intricate aerospace assemblies.

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What it is

Precision Fabrication of PEEK Aerospace Parts

AeroCNCParts delivers advanced CNC machining solutions for PEEK components, achieving dimensional tolerances as tight as ±0.005 mm. Our NADCAP-compliant manufacturing systems guarantee accuracy, traceability, and consistency for every aerospace-grade part.

  • 5-axis machining for complex part geometries.
  • FAI and CMM verification for quality assurance.
  • Complete batch documentation and material certification.
  • Processes certified under AS9100D and ISO 9001.
At a Glance

PEEK Key Properties

Density

1.30 – 1.32 g/cm³

Ultimate Tensile Strength

90 – 100 Mpa

Yield Strength

80 – 95 Mpa

Hardness

85 – 90 R scale

Elastic Modulus

3.6 – 4.0 Gpa

Machinability

Excellent

Weldability

Good

(Thermal Fusion)

Corrosion Resistance

Excellent

Finishes

Common Surface Treatments for PEEK

Polishing

Smooths and shines the surface.

  • Improves surface precision and sealing performance, ideal for aerospace connectors and enclosure assemblies.

Bead Blasting

Smooths or textures surfaces.

  • Creates a matte, uniform texture that minimizes glare and enhances visual consistency on visible parts.

Laser Marking

Precise, permanent surface engraving.

  • Provides durable identification and serial tracking in compliance with aerospace traceability requirements.
Advantages

Advantages of PEEK

  • Thermal Stability

    Maintains structural integrity and performance at elevated temperatures up to 260°C.

  • Lightweight Substitute for Metals

    Delivers comparable rigidity to aluminum while offering significant weight reduction benefits.

  • Chemical and Wear Resistance

    Resists aviation fluids, lubricants, and harsh chemicals with minimal degradation.

  • Outstanding Machinability

    Enables smooth finishes and tight tolerances for complex aerospace assemblies.

Comparison

PEEK 450G VS CF30 & GF30

High-level comparison of common aerospace PEEK. Always align to your project spec.

PEEK Grade Strength Thermal Resistance Corrosion Resistance Machinability Description
PEEK 450G High Excellent Excellent Excellent Unfilled grade providing high-dimensional precision and superior corrosion resistance; suitable for structural and electronic housings.
PEEK CF30 Very High Excellent Excellent Good Reinforced with carbon fibers for improved rigidity and reduced thermal expansion, ideal for load-bearing components.
PEEK GF30 High Very Good Very Good Excellent Glass fiber-filled variant with extra stiffness for structural supports and mounting frames.
FAQ

FAQs about PEEK Machining

Why is PEEK favored over aluminum in aerospace manufacturing
PEEK matches aluminum’s stiffness while weighing nearly 70% less, providing strength, fatigue resistance, and thermal endurance with reduced aircraft mass.
Can AeroCNCParts machine fiber-reinforced PEEK composites?
Yes. AeroCNCParts’s 5-axis CNC equipment efficiently processes CF30 and GF30 grades, maintaining uniform dimensions and exceptional surface integrity.
What temperature range can aerospace-grade PEEK tolerate?
It performs reliably up to 260°C, maintaining both structural and mechanical stability under extreme thermal exposure.
Is PEEK suitable for high-stress or load-bearing aerospace parts?
Yes. Carbon- and glass-filled PEEK variants provide enhanced rigidity and fatigue performance, suitable for brackets and airframe components.
What is AeroCNCParts’s typical delivery time for PEEK aerospace parts?
Standard lead time ranges from 4–7 business days, with expedited manufacturing options available for time-critical aerospace programs.
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