Engineering Plastics

PEEK PVX

PEEK PVX is a semi-crystalline high performance thermoplastic with optimised tribological properties for demanding bearing and friction requirement.

Key Features:

Very good sliding properties even without lubrication
High thermal mechanical bearing strength
Good chemical resistance
Hydrolysis resistant, even against superheated steam
High wear resistance
Very rigid
High creep resistance
Not electrically insulating
Good machinability
Resistant to gamma radiation

Applications:

Friction bearings
Static / dynamic high bearing strength parts
Slide shoes
Chain bearings
Sealing rings
Wear strips
Gears
Thrust washers
Ball valve seats
Slide rings
Piston rings

Technical Information:

Information to be used as a guide only. It corresponds with our current knowledge and indicates possible applications. We cannot guarantee suitability for a specific application. Unless otherwise stated these values represent averages taken from injection moulded samples.

Properties	Unit	Test Method DIN ASTM	Result
Mechanical	-	-	-
Density	g/cm³	53479	1.48
Tensile strength at yield	MPa	53455	-
Tensile strength at break	MPa	53455	118
Elongation at Break	%	53455	3
Modulus of elasticity in tension	MPa	53457	10000
Modulus of elasticity in flexure	MPa	53457	8100
Ball indentation hardness	MPa	53456	-
Impact strength (Charpy)	KJ/m²	53453	-
Creep rupture strength after 1000 hours with static load	MPa	-	-
Time yield limit for 1% elongation after 1000 hours	MPa	-	-
Coefficient of friction against hardened and ground steel p+0,05 N/mm2, v=0,6 m/s	-	-	0.11
Wear conditions as above	µm/km	-	-
Thermal	-	-	-
Crystalline melting point	ºC	53736	334
Glass transition temperature	ºC	53736	143
Heat distortion temperature method A	ºC	ISO 75	277
Heat distortion temperature method B	ºC	ISO 75	-
Max. service temperature short term	ºC	-	300
Max. service temperature long term	ºC	-	260
Coefficient of thermal conductivity	W/(m K)	-	0.24
Specific heat	J/(g K)	-	-
Coefficient of thermal expansion	10-5/K	-	2.2
Electrical	-	-	-
Dielectric constant at 10 (5) Hz	-	53483	-
Dielectric loss factor at 10(5) Hz	-	53483	-
Specific Volume Resistance	Ωcm	53482	-
Surface Resistance	O	53482	-
Dielectric strength 1mm	kV/mm	53481	-
Tracking resistance	-	53480	-
Miscellaneous	-	-	-
Moisture Absorption: Equilibrium in standard atmosphere (23ºC / 50% relative humidity)	%	53714
Water absorption at saturation at 23ºC	%	53495	0.1
Resistance to hot water, washing soda	-	-	resistant
Flamability	-	UL 94	VO
Resistance to weathering	-	-	resistant

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