PEEK (Polyether Ether Ketone) rod is one of the most sought-after high-performance thermoplastics in precision engineering. If you are evaluating PEEK rod for a demanding application, here is what you need to know.
What Makes PEEK Rod Exceptional
PEEK occupies a unique position in the engineering plastics hierarchy. It delivers the thermal stability of some thermosets while maintaining the fabrication flexibility of thermoplastics, and it does so at continuous service temperatures up to 250C.
Key mechanical properties: tensile strength 90-100 MPa at room temperature, flexural modulus 3.6 GPa (stiff yet machineable), notched impact 4.5 kJ/m2 (survives sudden mechanical shocks), water absorption 0.5 percent after 24h immersion (dimensionally stable), chemical resistance to most acids, bases, and organic solvents up to 200C.
Grades Available at LiiFoo
VICTREX PEEK 450G (Virgin Grade): Unfilled, natural color. Highest elongation and toughness. Ideal for general engineering, bushings, and insulators.
PEEK-GF30 (30% Glass-Filled): 30% glass fiber reinforcement. Higher stiffness and creep resistance at elevated temperatures. Preferred for structural components in aerospace interiors.
PEEK-CA30 (Carbon-Filled): 30% carbon fiber reinforcement. Lowest coefficient of friction, highest thermal conductivity. The go-to grade for seals, piston rings, and bearing surfaces in semiconductor equipment.
Common Applications by Industry
Semiconductor: Wafer carriers, CMP rings, insulator sleeves. Requires carbon-filled grades with low particle generation and high purity.
Aerospace: Interior brackets, cable clips, thermal insulators. Virgin or glass-filled grades meet FAA flammability requirements.
Oil and Gas: Drill bit components, valve seats, downhole seals. Carbon-filled grades for wear resistance in high-pressure environments.
Medical: Instrument handles, surgical tool components. FDA-compliant grades available with USP Class VI certification.
Why Source PEEK Rod from LiiFoo
We stock PEEK rod in standard diameters from 5mm to 200mm, lengths up to 3000mm. Custom cut-to-length and CNC machining services available. Full traceability documentation with every shipment. Request a technical data sheet at https://liifoo.cn.