VICTREX PEEK 450GL20

High performance thermoplastic material, 20% glass fibre reinforced PolyEtherEtherKetone (PEEK), semi crystalline, granules for injection moulding and extrusion, standard flow, colour natural/beige.

Applications for higher strength in a static system. Low coefficient of thermal expansion. Chemically resistant to aggressive environments, suitable for sterilization for medical and food contact applications.

Material Properties
Physical	Nominal Value	Unit	Test Method
Density (Crystalline)	1.43	g/cm³	ISO 1183
Spiral Flow¹	10.0	cm	Internal Method
Molding Shrinkage²			ISO 294-4
Across Flow	0.90	%
Flow	0.30	%
Water Absorption (Saturation, 23°C)	0.40	%	ISO 62
Water Absorption Saturation (100°C)	0.45	%	ISO 62
Mechanical	Nominal Value	Unit	Test Method
Tensile Modulus (23°C)	8800	MPa	ISO 527-1
Tensile Stress (Break, 23°C)	155	MPa	ISO 527-2
Tensile Strain (Break, 23°C)	3.0	%	ISO 527-2
Flexural Modulus (23°C)	8300	MPa	ISO 178
Flexural Stress (23°C)	250	MPa	ISO 178
Impact	Nominal Value	Unit	Test Method
Notched Izod Impact Strength (23°C)	8.0	kJ/m²	ISO 180/A
Unnotched Izod Impact Strength (23°C)	65.0	kJ/m²	ISO 180
Hardness	Nominal Value	Unit	Test Method
Shore Hardness (Shore D, 23°C)	85.5		ISO 868
Thermal	Nominal Value	Unit	Test Method
Deflection Temperature Under Load (1.8 MPa, Unannealed)	315	°C	ISO 75-2/Af
Glass Transition Temperature			ISO 11357-2
Onset	143	°C
Midpoint	150	°C
Melting Temperature	343	°C	ISO 11357-3
CLTE - Flow			ISO 11359-2
< 143°C	20	ppm/K
> 143°C	22	ppm/K
CLTE - Average			ISO 11359-2
< 143°C	45	ppm/K
> 143°C	120	ppm/K
Thermal Conductivity			ISO 22007-4
23°C³	0.30	W/m/K
23°C⁴	0.35	W/m/K
Electrical	Nominal Value	Unit	Test Method
Volume Resistivity (23°C)	1.0E+16	ohms·cm	IEC 60093
Dielectric Strength (2.00 mm)	24.0	kV/mm	IEC 60243-1
Dielectric Constant (23°C, 1 kHz)	3.10		IEC 60250
Dissipation Factor (23°C, 1 MHz)	5.0E-3		IEC 60250
Comparative Tracking Index	150	V	IEC 60112
Fill Analysis	Nominal Value	Unit	Test Method
Melt Viscosity (400°C)	475	Pa·s	ISO 11443

Typical Processing Information
Injection	Nominal Value	Unit
Drying Temperature	120 to 150	°C
Drying Time	3.0 to 5.0	hr
Suggested Max Moisture	0.020	%
Hopper Temperature	< 100	°C
Rear Temperature	360	°C
Middle Temperature	365 to 370	°C
Front Temperature	375	°C
Nozzle Temperature	380	°C
Mould Temperature	170 to 200	°C
Injection Notes
Drying Temperature / Time: 150°C / 3h or 120°C / 5h (residual moisture <0.02%) Runner: Die / nozzle >3mm, manifold >3.5mm Gate: >2mm or 0.5 x part thickness Important notes: 1) Processing conditions quoted in our datasheets are typical of those used in our processing laboratories Data for mould shrinkage should be used for material comparison. Actual mould shrinkage values are highly dependent on part geometry, mould configuration, and processing conditions. Mould shrinkage differs for along flow and across flow directions. “Along flow” direction is taken as the direction the molten material is travelling when it exits the gate and enters the mould. Mould shrinkage is expressed as a percent change in dimension of a specimen in relation to mould dimensions. 2) Data are generated in accordance with prevailing national, international and internal standards, and should be used for material comparison. Actual property values are highly dependent on part geometry, mould configuration and processing conditions. Properties may also differ for along flow and across flow directions. Detailed data available on our website www.victrex.com or upon request.

Notes

¹Mould Temperature: 190°C, Melt Temperature: 380°C, 1.00 mm

²380°C nozzle, 190°C tool

³Average

⁴Along flow