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Ensinger PEI

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Hippe PEEK Polyetheretherketone  (discontinued **)
Categories: Polymer; Thermoplastic; Polyketone; Polyetheretherketone (PEEK)

Material Notes: PEEK is a crystalline, easily machinable thermoplastic which is characterized by high tensile and constant good electrical properties between 0°-220°C, as well as due to favorable tribological behavior and flame resistance.

Information provided by Hippe.

Vendors: Ensinger TECAPEEK™ shapes are manufactured exclusively with Victrex™ PEEK polymer. The Ensinger process and Victrex resins ensure reliability, consistency, dimensional stability, and high temperature mechanical performance.

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Physical PropertiesOriginal ValueComments
Specific Gravity 1.32 g/ccDIN 53 479
Moisture Absorption at Equilibrium 0.10 %Absorption of humidity in standard operating environment; DIN 53 715
Water Absorption at Saturation 0.50 %DIN 53 495
 
Mechanical PropertiesOriginal ValueComments
Tensile Strength 92.0 MPaDIN 53 455
Elongation at Break 50 %DIN 53 455
Tensile Modulus 3.60 GPaDIN 53 457
Flexural Modulus 4.10 GPafrom bending test; DIN 53 457
Charpy Impact, Notched NBDIN 53 453
Coefficient of Friction, Dynamic 0.30 - 0.38Against steel, p=0.05 N/mm², v=0.6 m/s, hardened and ground
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity 4.90e+16 ohm-cmDIN 53 482, VDE 0303, Part 3
Dielectric Constant 3.2 - 3.3
@Frequency 1e+6 Hz
DIN 53 483, IEC-250
Dielectric Strength 20.0 kV/mmBreakdown; DIN 53 481, IEC-243, VDE 0303 Part 1
Dielectric Loss Index 0.0010 - 0.0040
@Frequency 1e+6 Hz
DIN 53 483, IEC-250
 
Thermal PropertiesOriginal ValueComments
CTE, linear 47.0 µm/m-°C
Thermal Conductivity 0.250 W/m-K
Melting Point 334 °CDIN 53 736
Maximum Service Temperature, Air 250 °CContinuous use
 300 °CShort Periods
Deflection Temperature at 0.46 MPa (66 psi) 182 °CISO-R 75 Method B
Deflection Temperature at 1.8 MPa (264 psi) 140 °CISO-R 75 Method A
Glass Transition Temp, Tg 143 °Cdynamic; DIN 53 736
Flammability, UL94 V-0
 
Descriptive Properties
Colorgray
Creep ResistanceGrade CTI 150DIN 53 480, IEC-112, VDE 0303 Part 1
Resistance to hot water, sudsresistant

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