GEHR Plastics PEEK Polyetheretherketone

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GEHR Plastics PEEK Polyetheretherketone
Categories:	Polymer; Thermoplastic; Polyketone; Polyetheretherketone (PEEK)
Material Notes:	Polyether etherketone can be used at very high temperatures and it shows good mechanical strength, toughness, hardness, flexural strength, and torsional strength. PEEK exhibits excellent chemical resistance, very good dielectric properties up to 260°C and a very good resistance to all kinds of radiation. Properties: very high mechanical strength very high rigidity very high thermal stability very high creep resistance very high dimensional stability very high radiation resistance very high hydrolysis resistance relatively low notch impact-strength low resistance against acetone Applications include bearing shells, piston rings, valve seats, gears, seals, aviation, cog-wheels, pump vanes, fittings, plug connectors, and wafer carriers.
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. Click here to view all available suppliers for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
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Physical Properties	Original Value	Comments

Specific Gravity	1.32 g/cc	ISO 1183
Moisture Absorption at Equilibrium	0.070 %	ISO 62
Water Absorption at Saturation	0.40 %	ISO 62

Mechanical Properties	Original Value	Comments
Hardness, Rockwell M	99	ISO 2039
Hardness, Shore D	90	ISO 868
Ball Indentation Hardness	250 MPa	ISO 2039
Tensile Strength at Break	67.0 MPa	ISO 527
Tensile Strength, Yield	91.0 MPa	ISO 527
Elongation at Break	11 %	ISO 527
Elongation at Yield	7.0 %	ISO 527
Modulus of Elasticity	4.21 GPa	ISO 527
Flexural Strength	170 MPa	ISO 178
Charpy Impact Unnotched	NB	ISO 179
Charpy Impact, Notched	4.00 kJ/m²	ISO 179

Electrical Properties	Original Value	Comments
Volume Resistivity	3.00e+13 ohm-cm	IEC 60093
Surface Resistance	>= 1.00e+13 ohm	IEC 60093
Dielectric Constant	3.2 @Frequency 1e+6 Hz	IEC 60250
Dielectric Strength	16.0 kV/mm	IEC 60243-1
Dielectric Loss Index	0.0030 @Frequency 1e+6 Hz	IEC 60250
Comparative Tracking Index	125 V	IEC 60112

Thermal Properties	Original Value	Comments
CTE, linear	47.0 µm/m-°C	ISO 11359
Thermal Conductivity	0.250 W/m-K @Temperature 20.0 °C	ISO 22007-4
Melting Point	340 °C	DIN EN ISO 3146
Maximum Service Temperature, Air	260 °C	UL 746B
Deflection Temperature at 0.46 MPa (66 psi)	240 °C	ISO 75
Deflection Temperature at 1.8 MPa (264 psi)	158 °C	ISO 75
Vicat Softening Point	250 °C	VST/B/50; ISO 306
Minimum Service Temperature, Air	-40.0 °C	UL 746B
Glass Transition Temp, Tg	143 °C	DIN EN ISO 3146
Flammability, UL94	V-0	UL 94
Oxygen Index	35 %	ASTM D2863

Compliance Properties	Original Value	Comments
FDA	Yes	Physiological indifference

Descriptive Properties
Acid Resistance	yes
Aromatic Resistance	yes
Bondability	yes
CKW Resistance	limited
Color	natural
Hydrocarbonate Resistance	yes
Hydroxide Resistance	yes
Ketone Resistance	yes
Physiological indifference	yes, EEC
Resistance Against Hot Water	yes
UV Stabilization	limited

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PGEHR037 / 79874

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