Ultem® (Polyetherimide, PEI)

 In Thermoplastics

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Ultem® Polyetherimide Characteristics

Ultem® is the ideal thermoplastic choice for demanding, high-heat applications. This polyetherimide material can withstand continuous operating temperatures of 340° F while maintaining strength and rigidity. It is easily fabricated and bonded and offers excellent chemical resistance and high dielectric strength.

Ultem® is the high-performance polyetherimide material of choice for many aerospace, aircraft, medical and pharmaceutical applications, including medical components. It offers exceptional mechanical properties and exhibits natural flame resistance and extremely low smoke generation.

  • Get a QuoteHeat, solvent and flame resistant
  • High dielectric strength and stability
  • Excellent mechanical properties
  • Rigid and strong
  • Exceptional resistance to environmental forces

See the chart below for more details on Ultem® material properties.

Applications for Ultem®

  • Jet engine components
  • Microwaves
  • Medical components
  • Manifolds
  • Electronic/electrical insulators

Contact a Dielectric Manufacturing knowledge expert to discuss the use of Ultem polyetherimide for fabrication of your plastic parts. Call 800-367-9122 or email sales@dielectricmfg.com.

Polytherimide Material Properties

Property Metricunits Englishunits
General
Density1.26e3 - 1.28e3kg/m^30.0455 - 0.0462lb/ft^3
Mechanical
Yield Strength7.35e7 - 8.11e7Pa10.7 - 11.8ksi
Tensile Strength9.19e7 - 1.01e8Pa13.3 - 14.7ksi
Elongation0.558 - 0.645% strain55.8 - 64.5% strain
Hardness (Vickers)2.17e8 - 2.38e8Pa22.1 - 24.3HV
Impact Strength (notched)3.81e3 - 4.2e3J/m^21.81 - 2.0ft.lbf/in^2
Fracture Toughness1.99e6 - 4.03e6Pa/m^0.51.81 - 3.67ksi/in^0.5
Young's Modulus2.89e9 - 3.04e9Pa0.419 - 0.44110^6 psi
Thermal
Max Service Temperature161 - 179°C322 - 354°F
Insulator or ConductorInsulatorInsulator
Specific Heat Capability1.47e3 - 1.53e3J/kg °C0.352 - 0.366BTU/lb. °F
Thermal Expansion Coefficient8.46e-5 - 1.01e-4strain/°C47 - 56µstrain/°F
Eco
CO2 Footprint6.93 - 7.66kg/kg6.93 - 7.66lb/lb
RecyclableYesYes