Material Data Sheet
Material: Ultem® 30% Glass Reinforced
Polyetherimide (PEI)ULTEM® is an amorphous thermoplastic polyetherimide (PEI) material which combines exceptional mechanical, thermal, and electrical properties. The addition of glass fiber reinforcement to this basic ULTEM®, coupled with Ensinger's proprietary extrusion technique, provides the ULTEM® with both greater tensile strength and rigidity while at the same time improving dimensional stability. ULTEM® is typically used in medical, electronic/electrical, microwave, automotive, and aircraft applications.
| Mechanical Properties | Test Method ASTM | Value | Units | ||
| Density | D792 | lbs/in3 |
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| Specific Gravity | D792 | 1.51 | g/cc | ||
| Water Absorption @ 24 hours, 73°F | D570 | 0.19 | % | ||
| Water Absorption @ Saturation, 73°F | D570 | % | |||
| Tensile Strength, 73°F | D638 | 17,500 | psi | ||
| Tensile Modulus | D639 | 900,000 | psi | ||
| Elongation ( at break), 73°F | D638 | 3 | % | ||
| Flexural Strength, 73°F | D790 | 25,000 | psi | ||
| Flexural Modulus of Elasticity, 73°F | D790 | 750,000 | psi | Compressive Strength | D695 | 30,700 | psi |
| Izod Impact Strength, 73°F | D256 | 1.1 | ft-lb/in of notch |
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| Rockwell Hardness, 73°F | D785 | M - 110 | M or R Scale | ||
| Shure Hardness | D Scale |
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| Wear Factor Against Steel, 40 psi, 50 fpm | D3702 | in.3-min/ft.lbs.hr | |||
| Static Coefficient of Friction | D3702 | ||||
| Dynamic Coefficient of Friction, 40 pcs, 50 fpm | D3702 |
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| Thermal Properties | |||||
| Heat Deflection Temperature @ 66 psi | D648 | 414 | °F | ||
| Heat Deflection Temperature @ 264 psi | D648 | 410 | °F | ||
| Coefficient of Linear Thermal Expansion | D696 | 1.1 X 10-5 | in/in./°F | ||
| Continuous Servicing Temperature, Intermittent | °F | ||||
| Continuous Servicing Temperature, Long Term | UL746B |
°F | |||
| Specific Heat | BTU/lb -°F | ||||
| Thermal Conductivity | 1.56 | ||||
| Melting Point | D2133 |
°F | |||
| Flammability | UL94 |
V-0 |
(mm) | ||
| Electrical Properties | |||||
| Dielectric Strength, In Oil | D149 | 630 | Volts/mil | ||
| Dielectric Strength, In Air | 770 | ||||
| Dielectric Constant, 1 kHz, 50% RH (73°F) | D150 |
3.7 | |||
| Dissipation Factor, 1 kHz, 50% RH (73°F) | D150 |
0.0015 | |||
| Volume Resistivity, 1/16" | D257 | 3.0 x 1016 | ohm-cm | ||
| *The values shown in these and the following charts are typical, average properties. Actual values may differ due to variations in resin formulations and processing methods. These values are obtained from sources believed to be reliable, including the resin manufactures, converters and other published sources. However, they should not be used for specification or design purposes. |
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