Thermal Expansion Coefficients: peek
Coefficient of linear thermal expansion (CTE, alpha) as a function of temperature for common engineering materials — steels, stainless steels, aluminum alloys, titanium, nickel superalloys, copper alloys, ceramics, and polymers at temperatures from -200C to 2000C (material-dependent)
| material | temperature C | CTE 1e6 per C (1e-6/C) | material category | mean CTE from 20C 1e6 per C (1e-6/C) | notes |
|---|---|---|---|---|---|
| peek | -40 | 40 | polymer | 44 | PEEK (polyetheretherketone); Tg = 143°C; semi-crystalline high-performance polymer |
| peek | 0 | 44 | polymer | 46 | PEEK |
| peek | 20 | 47 | polymer | 47 | PEEK — reference temperature; nominal CTE 47×10^-6 /°C for neat PEEK |
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