Why Choose Carbon Fiber PEEK for Extreme Environments?
Standard PEEK is already renowned for its chemical resistance, but the addition of carbon fiber provides several critical upgrades:
- Enhanced Stiffness: The carbon reinforcement significantly increases the flexural modulus.
- Superior Thermal Conductivity: Carbon fibers dissipate heat faster than natural PEEK, reducing thermal expansion.
- Reduced Weight: It provides a high strength-to-weight ratio, making it an ideal replacement for stainless steel or titanium in aerospace and automotive applications.
- Wear Resistance: PEEK-CF30 exhibits excellent load-bearing capabilities and a low coefficient of friction.
Technical Comparison: Natural PEEK vs. Carbon Fiber PEEK (CF30)
| Property | Natural PEEK | PEEK-CF30 (30% Carbon Fiber) |
|---|---|---|
| Tensile Strength | ~95-100 MPa | ~150-190 MPa |
| Flexural Modulus | ~4.1 GPa | ~13.0 GPa |
| Max Operating Temp | 250°C | 250°C (Improved stability) |
| Density | 1.32 g/cm³ | 1.40 g/cm³ |
| Conductivity | Insulative | Semi-Conductive/Static Dissipative |
Common Applications in Industry
Thanks to its ability to withstand high pressure and aggressive chemicals, PEEK-CF30 is frequently utilized in:
- Semiconductor: Testing sockets and wafer handling tools where dimensional stability is vital.
- Oil & Gas: Downhole tool components and high-pressure seals.
- Aerospace: Lightweight structural brackets and engine parts.
- Medical: High-load surgical instruments that require repeated sterilization.
Frequently Asked Questions (FAQ)
Q: Is Carbon Fiber PEEK electrically conductive?
A: Yes, the 30% carbon fiber content makes the material significantly more conductive than natural PEEK, often categorized as static dissipative or semi-conductive.
Q: Can PEEK-CF30 be CNC machined to tight tolerances?
A: Absolutely. At Viethung Plastics, we use multi-axis CNC equipment to achieve high-precision geometries, though the carbon fiber does require specialized tooling to manage its abrasiveness.
Q: Does Viethung Plastics offer samples?
A: Yes, we provide free samples and have no minimum order quantity (MOQ) to ensure our clients can test the material for their specific needs.
Ready to upgrade your components? Explore our PEEK-CF30 Product Page or contact our technical team for a custom quote today.





