Ultem® 1000 (Polyetherimide)

Ultem® 1000 is a high performance engineering thermoplastic polymer that provides superior strength and stiffness.  It has excellent chemical resistance and has a continuous service temperature of 340 degrees F.  It is easily machined with conventional metal working equipment and can be machined to very close tolerances.  Both sheet and rod are available in many thicknesses and diameters.  Rod stock comes ground to diameter to accommodate through spindle turning.  Standard colors are semi-transparent amber and black custom colors are available only as custom runs.

Ultem® 1000  is non hygroscopic, FDA, and USP Class VI compliant.  It absorbs minimal amounts of moisture and can be cleaned easily.  As a result, it finds applications in high moisture, electrical device, medical and surgical components.

Although it has many benefits as an unfilled material, Ultem® 1000 can be filled with glass fibers to enhance its structural and thermal properties.  Also, since it is an amorphous material, care needs to be taken if machined with coolant.  If used, non aromatic coolants should be used to avoid crazing.

Specification Test Value Units
Specific Gravity, 73°F D792 1.28
Tensile Strength @ Yield, 73°F D638 17,000 psi
Tensile Modulus of Elasticity, 73°F D638 500,000 psi
Tensile Elongation (at break), 73°F D638 60 %
Flexural Strength, 73°F D790 20,000 psi
Flexural Modulus of Elasticity D790 500,000 psi
Shear Strength, 73°F D732 15,000 psi
Compressive Strength – Ultimate 22,000 psi
Compressive Strength at 2% Deformation D695 psi
Compressive Strength at 10% Deformation D695 psi
Deformation Under Load < 1 %
Compressive Modulus of Elasticity, 73°F D695 480,000
Compressive Strength ⊥ to Laminate (Modulus) psi
Compressive Strength ⊥ to Laminate (Yield) psi
Compressive Strength ⊥ to Laminate (Ultimate) psi
Hardness, Durometer (Shore “D” scale) D2240 D86
Hardness, Rockwell (Scale as noted) D785 125 Rockwell R
Izod Impact, Notched @ 73°F D256 Type A 0.5 ft.lbs/in. of notch
Coefficient of Friction (Dry vs Steel) Static PTM 55007 0.5
Coefficient of Friction (Dry vs Steel) Dynamic PTM 55007 0.42
Maximum Static Bearing Load (P) PTM 55007 1,000 psi
Maximum Unlubricated No Load Bearing Velocity (V) PTM 55007 10 ft/minute
Maximum Limiting PV (Unlubricated) PTM 55007 1,900 psi x ft/min.
Wear Factor “K” x 10-10 PTM 55010 2,900 Cubic in.-min/ft.lbs.hr
Sand Wheel Wear/Abrasion Test 70 UHMW=100
Minimum Mating Surface Hardness 30 Rockwell (Brinnell)
Coefficient of Linear Thermal Expansion E-831 (TMA) 3.1 in/in/°F x 10-5
Coefficient of Thermal Expansion // to Laminates E-831 (TMA) 3.1 in/in/°F x 10-5
Coefficient of Thermal Expansion I to Laminates E-831 (TMA) 3.1 in/in/°F x 10-5
Softening Point 392 °F
Heat Deflection Temperature 264 psi D648 400 °F
Embrittlement Temperature °F Min.
Continuous Service Temperature in Air 340 °F Max.
Short Term Service Temperature 360 °F Max.
Tg-Glass Transition (Amorphous) D3418 410 °F
Melting Point (Crystalline) Peak D3418 °F
Thermal Conductivity F433 0.9 BTU-in/(hr/ft2°F)
Dielectric Strength Short Term D149 830 Volts/mil
Volume Resistivity D257 >1013 ohm/cm
Surface Resistivity D257 ohm/cm
Dielectric Constant, 106 Hz D150 3.15
Dissipation Factor, 106 Hz D150 0.0013
Flammability @ 3.1mm(1/8 in.) UL94 UL94 V-0
Arc Resistance seconds
Water Absorption, Immersion 24 Hours D570 (2) 0.25 %
Water Absorption, Immersion Saturation D570 (2) 1.25 %
Machinability Rating 1 1=easy, 10=difficult
Rod Diameter Availability (Off the Shelf) .50 6.0 inches
Sheet Thickness Availability (Off the Shelf) .25 3.0 inches
Characteristics / Attributes Superior Chemical Resistance / 340F Cont. Service Temp