Polyetherimide
Standards: ISO 10350, ASTM D5205
PEI (Polyetherimide), known as Ultem®, combines excellent mechanical properties with inherent flame retardancy (V-0) and continuous service to 170°C. Transparent amber colour. Used in aerospace, medical and semiconductor applications. More cost-effective than PEEK for applications below 170°C.
⚠️ Technical data are typical values. Always verify with the manufacturer for critical applications.
Guideline values from manufacturer datasheet. Actual values may vary by grade and dimensions.
| Property | Value | Unit |
|---|---|---|
| Density | 1.27 | g/cm³ |
| Tensile Strength (Yield) | 110 | MPa |
| Elongation at Break | 60 | % |
| Tensile Modulus (E) | 3600 | MPa |
| Shore Hardness | 85 | Scale D |
| Service Temp. Long-term | -40 … 170 | °C |
| Service Temp. Short-term | 200 | °C |
| Melting Temperature | 380 | °C |
| Water Absorption | 0.25 | % |
| Flammability (UL94) | V0 | |
| Volume Resistivity | 10¹⁵ | Ω·cm |
Disclaimer: The technical data and information provided on this page are for reference and general guidance purposes only. They are based on manufacturer datasheets and standard testing conditions. Material properties can vary depending on dimensions, machining, and specific application environments. MaterialCut does not guarantee the accuracy of this data for specific use cases. For exact specifications and critical applications, please consult the original manufacturer datasheets or contact our technical team.
