Key Features
- Highest strength and modulus of the PK series
- HDT 315 °C — near the melting point of PEEK
- Outstanding creep and fatigue resistance
- Low CTE; superior wear behavior
Applications
Compressor valve plates, pump wear rings, aerospace brackets, semiconductor structural parts, high-load gears.
Typical Properties
| Property | Test Method | Unit | Typical Value |
|---|---|---|---|
| Density | ISO 1183 | g/cm³ | 1.40 |
| Tensile strength | ISO 527-2 | MPa | 220 |
| Elongation at break | ISO 527-2 | % | 1.8 |
| Flexural strength | ISO 178 | MPa | 335 |
| Flexural modulus | ISO 178 | GPa | 22 |
| Notched Izod impact | ISO 180/A | kJ/m² | 8 |
| HDT (1.8 MPa) | ISO 75 | °C | 315 |
| Thermal conductivity | ISO 22007 | W/(m·K) | 0.92 |
| Water absorption 24h | ISO 62 | % | 0.06 |
| Flammability | UL 94 | — | V-0 (1.5 mm) |
Typical values for grade selection only — not a specification. Lot-specific data provided in the COA accompanying each shipment.
Processing Guidelines
| Parameter | Recommendation |
|---|---|
| Drying | 150 °C / 3–4 h, desiccant dryer, dew point ≤ −40 °C |
| Melt temperature | 350–380 °C (virgin / GF); 360–390 °C (CF) |
| Mold temperature | 160–190 °C |
| Screw / gate | General-purpose screw; avoid dead spots |