Thermal Expansion Coefficients: ptfe
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 |
|---|---|---|---|---|---|
| ptfe | -40 | 120 | polymer | 130 | PTFE (polytetrafluoroethylene); very high CTE — can vary with crystallinity (~50-70%) and temperature |
| ptfe | 0 | 130 | polymer | 131 | PTFE; second-order transition ~19°C causes CTE peak |
| ptfe | 20 | 135 | polymer | 135 | PTFE — reference temperature; transition near 19°C causes CTE spike |
This is a sample. Search the full thermal expansion coefficients dataset and 300+ more by creating a free account and accessing the database.
Get started for FREE