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.
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2 interactive curves for this material
Stress-strain, S-N fatigue and environmental knockdown curves are free with an account.
Create free account| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Poisson's Ratio(ν) | 0.4000 | - | — | — | |
Stress–Strain Curve(σ–ε) | Curve (11 pts) | Pa | 20°C | ||
Yield Strength (0.2% offset)(σy) | 91.00 | MPa | — | — | |
Young's Modulus(E) | 3.600 | GPa | — | — | |
Young's Modulus vs Temperature(E(T)) | Curve (9 pts) | Pa | — |
3 interactive curves for this material
Stress-strain, S-N fatigue and environmental knockdown curves are free with an account.
Create free account| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
CTE vs Temperature(α(T)) | Curve (6 pts) | 1/K | — | ||
Specific Heat Capacity(Cp) | 1.340 | J/(kg·K) | — | — | |
Specific Heat vs Temperature(Cp(T)) | Curve (7 pts) | J/(kg·K) | — | ||
Thermal Conductivity(k) | 0.2500 | W/(m·K) | — | — | |
Thermal Conductivity vs Temperature(k(T)) | Curve (5 pts) | W/(m·K) | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 1.320 | kg/m³ | — | — |