PEEK (Polyetheretherketone)

Verifiedpolymer
· PEEK· polyetheretherketone

PEEK is a high-performance semicrystalline thermoplastic polymer belonging to the polyaryletherketone (PAEK) family, known for exceptional chemical resistance, dimensional stability at elevated temperatures, and mechanical performance across a wide operating range. It is widely used in aerospace, medical device, automotive, and oil & gas industries where demanding thermal, chemical, and mechanical environments require a lightweight polymer alternative to metals or thermosets. Engineers select PEEK over conventional plastics when applications demand continuous service at elevated temperatures, resistance to aggressive chemicals and sterilization methods, low flammability, or biocompatibility—making it particularly valuable in applications where material reliability directly impacts safety or performance.

aerospace structural componentsorthopedic and dental implantsoil and gas downhole toolsautomotive under-hood partsmedical device housingshigh-temperature bearing cages

Compliance & Regulations

?UL 94?ISO 10993?Conflict Free?FDA?RoHS?REACH?TSCA?Prop 65
PropertyValueUnitConditionsSource
Poisson's Ratio(ν)
-
Stress–Strain Curve(σ–ε)
Curve (11 pts)
Pa20°C
Yield Strength (0.2% offset)(σy)
Pa
Young's Modulus(E)
Pa
Young's Modulus vs Temperature(E(T))
Curve (9 pts)
Pa
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
CTE vs Temperature(α(T))
Curve (6 pts)
1/K
Specific Heat Capacity(Cp)
J/(kg·K)
Specific Heat vs Temperature(Cp(T))
Curve (7 pts)
J/(kg·K)
Thermal Conductivity(k)
W/(m·K)
Thermal Conductivity vs Temperature(k(T))
Curve (5 pts)
W/(m·K)
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
kg/m³
Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Safety & Biocompatibility

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.