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PEEK Datasheet:

Properties	Unit	Method
Density	g/cm3	527 / D 792	1.32
Tensile strength at yield	MPa	527 / D 638	95
Tensile strength at break	MPa	527 / D 638
Elongation at break	%	527 / D 638	25
Modulus of elasticity in tension	MPa	527 / D 638	3000
Modulus of elasticity in flexture	MPa	178 / D 790	4100
Hardness Rockwell	MPa	2039/1	M99
Impact Strength	kJ/m2	179 / D 256	No br.
Creep rupture strength after 1000 hrs with static load	MPa
Time yield limit for 1% elongation after 1000 hrs	MPa
Coefficient of friction against hardened and ground steel p=0,05 N/mm2, v = 0,6 m/s	-		0.3 - 0.38
Wear conditions as above	um/km
Crystalline melting point	°C	DIN 53 736	plus 343
Glass transition temperature	°C	DIN 53 736	plus 143
Heat distortion temperature Method A Method B	°C °C	R 75 R 75	plus 140 plus 182
Max. service temperature short term long term	°C °C		plus 300 plus 260
Coefficient of thermal conductivity	W/(m K)		0.25
Specific Heat	J/(g K)		0.32
Coefficient of thermal expansion	10-5/K	DIN 53 483 / D 696	5.0
Dielectric constant at 105 Hz		DIN 53 483	3.2 - 3.3
Dielectric loss factor at 105 Hz		DIN 53 483	0.001 - 0.004
Specific volume resistance	Ω cm	DIN 60093	1016
Surface resistance	Ω	DIN 60093	1015
Dielectric Strength 1mm	kV/mm	ASTM 149	20
Tracking Resistance		53 480
Moisture absorption: Equilibrium in standard atmosphere (plus 23°C / 50% relative humidity)	%	62	0.1
Water absorption at saturation at plus 23°C	%	62	0.5
Resistance to hot water, washing soda			resistant
Flammability according to UL standard 94			V0
Resistance to weathering			not resistant