PEEK CF30 is a 30% carbon-fiber-reinforced grade of PEEK — polyetheretherketone — engineered for applications that demand the highest stiffness, strength, and dimensional stability within the PEEK family. The carbon fiber reinforcement dramatically increases rigidity and load-bearing capacity compared to unfilled PEEK, while simultaneously reducing thermal expansion and improving tribological performance under sliding contact.
PEEK CF30 achieves a tensile strength of 35,000 psi (242 MPa) and a tensile modulus of 3,538,000 psi (24,400 MPa) — roughly six times stiffer than unfilled PEEK in modulus. Long-term service temperature reaches 500°F (260°C), with short-term capability to 570°F (300°C). Density is 1.39 g/cm³, and the carbon fiber reinforcement imparts inherent lubricity, making CF30 a natural fit for structural wear components that also require dimensional precision at elevated temperatures.
Grades comparison. Choose PEEK CF30 when stiffness and dimensional stability under load are the primary drivers. If you need reinforcement with retained electrical insulation, step down to PEEK GF30 — 30% glass-fiber reinforced, which carries a volume resistivity of 10¹⁴ Ω·cm versus CF30's conductive 10⁴ Ω·cm. For applications combining maximum wear resistance with lubrication, consider PEEK PVX — triple-blend wear grade or PEEK PTFE — bearing grade. When electrostatic dissipation in a cleanroom environment is required, see PEEK ELS.
Typical applications. PEEK CF30 is specified for structural brackets, housings, pump components, valve seats, aerospace structural parts, and high-load bearing surfaces where metallic components are being replaced to reduce weight. The material machines on standard CNC equipment using sharp carbide tooling; because of the abrasive carbon fiber content, tungsten carbide or PCD tooling is preferred for extended tool life. Contact Ready Plastics for available sheet and rod stock sizes.
