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Acetal Datasheet:

Properties	Unit	Method
Density	g/cm3	527 / D 792	1.41
Tensile strength at yield	MPa	527 / D 638	60
Tensile strength at break	MPa	527 / D 638
Elongation at break	%	527 / D 638	30
Modulus of elasticity in tension	MPa	527 / D 638	2700
Modulus of elasticity in flexture	MPa	178 / D 790
Ball indentation hardness	MPa	2039/1	145
Impact Strength	kJ/m2	179 / D 256	No br.
Creep rupture strength after 1000 hrs with static load	MPa		40
Time yield limit for 1% elongation after 1000 hrs	MPa		13
Coefficient of friction against hardened and ground steel p=0,05 N/mm2, v = 0,6 m/s	-		0.32
Wear conditions as above	um/km		8.9
Crystalline melting point	°C	DIN 53 736	plus 165
Glass transition temperature	°C	DIN 53 736	-60
Heat distortion temperature Method A Method B	°C °C	R 75 R 75	plus 110 plus 160
Max. service temperature short term long term	°C °C		plus 140 plus 100
Coefficient of thermal conductivity	W/(m K)		0.31
Specific Heat	J/(g K)		1.5
Coefficient of thermal expansion	10-5/K	DIN 53 483 / D 696	10
Dielectric constant at 105 Hz		DIN 53 483	3.5
Dielectric loss factor at 105 Hz		DIN 53 483	0.003
Specific volume resistance	Ω cm	DIN 60093	>1014
Surface resistance	Ω	DIN 60093	>1014
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	>0.3
Water absorption at saturation at plus 23°C	%	62	0.5
Resistance to hot water, washing soda			limited resistance
Flammability according to UL standard 94			HB
Resistance to weathering			not resistant