POM

Copolyoxymethylene

It is a thermoplastic material with excellent fatigue resistance, creep resistance, self-lubrication and machining properties, and can be used for a long time at a temperature of -40°C-100°C

Physical property table Physical property table download

Advantage

Characteristic：

Good mechanical strength and dimensional stability, good machinability, good surface self-lubrication performance, high surface hardness.

Information

Shape		Colour

Plate	Bar	Black	Yellow	Blule	Green	Red	Gray	White	Orange

Plate
Thickness（mm）	Breadth（mm）	Length（mm）
0.5-200	610/1000	1220/2000

Bar
Diameter（mm）	Length（mm）
6-200	1000/2000

Mechanical Properties

Specific gravit	ASTM D792	g/cm3	1.43
Tensile yield strength	ASTM D638	Mpa	60
Breaking elongation	ASTM D638	%	30
Bending strength	ASTM D790	Mpa	100
Flexural modulus	ASTM D790	Mpa	2800
Shore hardness	ASTM D2240	D	85
Impact strength	ASTM D256	J/M	74

Thermal Properties

Melting point	DSC	°C	165
Heat distortion temperature	ASTM D648	°C	130
Operating temperature	-	°C	100
Maximum operating temperature	-	°C	150
Thermal conductivity	DIN 52612-1	W/(K-M)	0.31
Coefficient of linear themal	ASTM D696	10-5-1/K	13

Electrical Properties

Dielectric strength	ASTM D150	KV-mm	19
Dielectric loss factor	ASTM D150	-	0.007
Volume resistivit	ASTM D257	Ω.cm	10¹⁴
Surface resistivity	ASTM D257	Ω	10¹⁶
Dielectric constant	ASTM D149	-	3.7

Chemical P roperties

Water absorption	23°C 60%RH	%	0.22
Acid resistance	23°C 60%RH		+
Alkali resistance			+
Acid and alkali resistance			+
Resistance to sodium chlorate			0
Resistance to aromatic compounds			+
Resistance to ketone	23°C 60%RH		+
Resistance to hot water	23°C 60%RH		+