PEI Unfilled
Overview
What is the Material: PEI Unfilled is an amorphous material.
Key Material Features: This material is beneficial in applications requiring mechanical strength, rigidity, hydrolysis/steam resistance, temperature resistance, and dimensional stability.
Other Considerations: This material is typically not recommended in bearing and wear applications.
Physical
| Property | Value | Typical ASTM Test |
|---|---|---|
| Chemical Designation | (PEI) Polyetherimide | |
| Trade Names (®, ™) | Tecapei, Ultem 1000 | |
| Color | Amber Transparent | |
| Density (g/cm^3) | 1.27 | D 792 |
Mechanical
| Property | Value | Typical ASTM Test |
|---|---|---|
| Modulus of Elasticity (Tensile Test) (psi) | 430000 | D 638 |
| Tensile Strength at Break (psi) | 17500 | D 638 |
| Elongation at Yield (%) | 7 | D 638 |
| Elongation at Break (%) | 40 | D 638 |
| Flexural Strength (psi) | 23000 | D 790 |
| Modulus of Elasticity (Flexural Test) (psi) | 480000 | D 790 |
| Compression Strength: 10% Strain (psi) | 21000 | D 695 |
| Compression Strength: 1% Strain (psi) | 3500 | D 695 |
| Compression Modulus (psi) | 480000 | D 695 |
| Impact Strength (Izod) (ft-lbs/in) | 0.60 | D 256 |
| Hardness (R) | 126 | D 785 |
| Hardness (M) | 110 | D 785 |
Thermal
| Property | Value | Typical ASTM Test |
|---|---|---|
| Vicat Softening Point (°F) | 426 | |
| Deflection Temperature (°F) (66 psi) | 410 | D 648 |
| Deflection Temperature (°F) (264 psi) | 394 | D 648 |
| Service Temperature Continuous (°F) | 338 | |
| Service Temperature Intermittent (°F) | 392 | |
| Thermal Expansion (CLTE) (in/in/°F) | 3.10E-5 | D 696 |
| Thermal Conductivity (BTU-in/hr-ft^2-°F) | 1.50 |
Electrical
| Property | Value | Typical ASTM Test |
|---|---|---|
| Volume Resistivity (Ω*cm) | 1.00E17 | D 257 |
| Dielectric Strength (V/mil) | 830 | D 149 |
Other
| Property | Value | Typical ASTM Test |
|---|---|---|
| Moisture Absorption (%) (24 Hours) | 0.25 | D 570 |
| Moisture Absorption (%) (Saturated) | 1.25 | D 570 |
| Flammability | V-0 |
The data stated are typical values intended for reference and comparison purposes only. The data should not be used as a basis for design specifications or quality control. The information is provided as a guide to the best of our knowledge and given without obligation or liability. Testing under individual application circumstances is recommended.