Ultem® Machining

||Ultem® Machining
Ultem® Machining2018-10-10T11:52:20+00:00

Ultem® is a brand name for polyetherimide (PEI), an amorphous polymer with characteristics similar to the related plastic PEEK. Relative to PEEK, PEI is more cost effective, but is lower in impact strength and usable temperature.  This material offers high strength and excellent flame and heat resistance.

Ultem® is commonly machined into parts for reusable medical devices, analytical instrumentation, electrical/electronic insulators ans a variety of structural components requiring high strength and rigidity at elevated temperatures.

CCT Precision Machining is an industry leader in Ultem® machining.  We are able to maintain tolerances, create features and produce parts that even the material manufacturers deem impossible. By using high speed spindles capable of turning at 30,000 RPM, tightly controlled work envelopes and cutting edge work holding systems, CCT Precision can machine components from the most simple part to the most intricate part on any of the 25+ machines in our facility.

  • 27” x 15” x 13” Work Envelope
  • Tolerances to +/- .00025” (0.006 mm)
  • Hole Diameters to 0.003” (0.076 mm)

If precision machining of Ultem® parts is what you are looking for, Request a Quote today.

Ultem 1000 Ultem 1000 Ultem 2300 Ultem 2300 Semitron ESD410
Mechanical ASTM Test Method Extruded Polyetherimide Injection Molded Polyetherimide Extruded 30% Glass-filled Polyetherimide Injection Molded 30% GF Polyetherimide Static Dissapative Polyetherimide Units
Strength to Weight Ratio - - - - - - ksi
Specific Gravity @73 F D792 1.28 1.27 1.51 1.51 1.41 -
Tensile Strength @73 F, (ult)/(yld) D638 16,500 (ult) 15,200 (yld) 17,000 (ult) 24,500 (yld) 9,000 psi
Tensile Modulus of Elasticity @73 F D638 475,000 - 800,000 1,260,000 850,000 psi
Tensile Elongation at Break @73 F D638 80 7 3 3 2 %
Flexural Strength @73 F D790 20,000 22,000 30,000 33,000 12,000 psi
Flexural Modulus of Elasticity @73 F D790 500,000 480,000 900,000 1,300,000 850,000 psi
Shear Strength @73 F D732 15,000 15,000 - 14,000 - psi
Comprehensive Strength, (% Deformation) @73 F D695 22,000 (10) 21,900 (10) 32,000 (10) 30,700 (10) 19,500 (10) psi
Comprehensive Modulus of Elasticity @73 F D695 480,000 480,000 625,000 938,000 600,000 psi
Hardness, Rockwell, Scale as noted @73 F D785 M112 (R125) M109 M114 (R127) M114 M115 (R125) -
Hardness, Durometer, Shore D @73 F - D86 - D86 - D85 -
Izod Impact, (Notched) @73 F D256 Type A 0.5 1.0 1.0 2.0 0.8 ft-lb/in of notch
Coefficient of Friction, (Dry vs Steel) Dynamic - 0.42 - - - 0.18 -
Limiting PV, (with 4 to 1 factor of safety applied) - 1,875 - - - 12,000 psi-ft/min
Thermal ASTM Test Method Extruded Polyetherimide Injection Molded Polyetherimide Extruded 30% Glass-filled Polyetherimide Injection Molded 30% GF Polyetherimide Static Dissapative Polyetherimide Units
Coefficient of Linear Thermal Expansion @73 F E-831 (TMA) 3.1 E-05 3.1 E-05 1.1 E-05 1.1 E-05 1.8 E-05 in/in/F
Heat Deflection Temperature @264 psi D648 392 392 410 410 410 F
Tg-Glass transition termperature, (Amorphous) D3418 419 - 419 - 428 F
Melting Point, (VS=Vicat Softening Temp.) D3418 - - - 442 (VS) - F
Continuous Service Temperature in Air, (Max.) - 340 340 340 340 338 F
Thermal Conductivity - 0.90 0.22 W/M-C 1.15 - - BTU-in/hr-ft2-F
Electric ASTM Test Method Extruded Polyetherimide Injection Molded Polyetherimide Extruded 30% Glass-filled Polyetherimide Injection Molded 30% GF Polyetherimide Static Dissapative Polyetherimide Units
Dielectric Strength, Short Term D149 830 830 770 770 - Volts/mil
Volume Resistivity D257 6.7 E+17 1.0 E+17 3.0 E+16 3.0 E+16 1E5 - 1E7 ohm-cm
Dielectric Constant @10E6 Hz D150 3.2 - 3.7 - - -
Dissipation Factor @10E6 Hz D150 0.001 - 0.002 - - -
Flammability @3.1 mm unless noted UL94 V-0 5VA (1.9mm) V-0 V-0 (0.25mm) V-0 -
H2O ASTM Test Method Extruded Polyetherimide Injection Molded Polyetherimide Extruded 30% Glass-filled Polyetherimide Injection Molded 30% GF Polyetherimide Static Dissapative Polyetherimide Units
Water Absorption, Immersion, 24 hours D570(7) 0.25 0.25 0.18 0.16 0.30 % by weight
Water Absorption, Saturation D570(7) 1.25 1.25 0.90 0.90 1.25 % by weight