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HDPE Datasheet:

Properties	Unit	Method
Density	g/cm3	527 / D 792	0.95 - 0.96
Tensile strength at yield	MPa	527 / D 638	25
Tensile strength at break	MPa	527 / D 638
Elongation at break	%	527 / D 638	&nsbp;
Modulus of elasticity in tension	MPa	527 / D 638	1000
Modulus of elasticity in flexture	MPa	178 / D 790	1000 - 1400
Ball indentation hardness	MPa	2039 / 1	50
Impact Strength	kj/m2	179 / D 256	no br.
Creep rupture strength after 1000 hrs with static load	MPa		12.5
Time yield limit for 1% elongaction after 1000 hours	MPa		3
Coefficient of friction against hardened and ground steel p = 0,05 N/mm2, v = 0,6m/s	-		0.29
Wear conditions as above	um/km		&nsbp;
Crystalline melting point	°C	DIN 53 736	130
Glass transition temperature	°C	DIN 53 736	-95
Heat distortion temperature Method A Method B	°C °C	R75 R75	42-49 70-85
Max. service temperature Short term Long term	°C °C		90 80
Coefficient of thermal conductivity	W/(m K)		0.35-0.43
Specific heat	J(g K)		1.5
Coefficient of thermal expansion	J/(g K)		1.7 - 2
Dielectric constant at 105 Hz		DIN 53 483	2.4 ***
Dielectric loss factor at 105 Hz		DIN 53 483	0.0002 ***
Specific volume resistance	Ω cm	DIN 60093	>1015***
Surface resistance	Ω	DIN 60093	>1013***
Dielectric strength 1mm	kV/mm	ASTM 149	>50 ***
Tracking resistance		53 480	KA 3c ***
Moisture absorption: Equilibrium in standard atmosphere (plus 23°C / 50 % relative humidity)	%	62	<0.05
Water absorption at saturation at plus 23°C	%	62	0.02
Resistance to hot water, washing soda			limited resistance
Flammability			HB
Resistance to weathering			Natural: not resistant Black: resistance