PolyPLASTY PolyPOM Polyoxymethylene (POM)

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PolyPLASTY PolyPOM Polyoxymethylene (POM)
Categories:	Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM); Acetal Copolymer, Unreinforced
Material Notes:	POM has minimal water absorption, excellent dimensional stability and the best properties for chip machining. Thanks to its favorable characteristics, great hardness, rigidity and strength with good toughness, chemical resistance and its shear behavior with abrasion resistance, POM is a successful replacement for metal materials. It is resistant to organic solvents. It also features good resistance to black light UV-radiation. Information provided by PolyPLASTY.
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Physical Properties	Original Value	Comments

Water Absorption	0.20 %	under regular conditions; ISO 62
Moisture Absorption at Equilibrium	0.80 %	ISO 62

Mechanical Properties	Original Value	Comments
Hardness, H358/30	145 MPa	ISO 2039-1
Hardness, Shore D	81	ISO 868, ISO 2039-2
Elongation at Break	27 %	ISO 527
Elongation at Yield	9.4 %	ISO 527
Modulus of Elasticity	2.70 GPa	ISO 527
Flexural Strength	97.0 MPa	ISO 178
Fatigue Strength	31.0 MPa	flexure; ASTM D671
Izod Impact, Notched	60.0 J/m	ISO 180/4A
Izod Impact, Notched (ISO)	5.50 kJ/m² @Temperature 23.0 °C	ISO 180/1A
	5.50 kJ/m² @Temperature -30.0 °C	ISO 180/1A
Izod Impact, Unnotched (ISO)	100 kJ/m² @Temperature -30.0 °C	ISO 180/1C
	930 kJ/m² @Temperature 23.0 °C	ISO 180/1C
Charpy Impact Unnotched	190 kJ/m² @Temperature -30.0 °C	ISO 179/1eU
	210 kJ/m² @Temperature 23.0 °C	ISO 179/1eU
Charpy Impact, Notched	5.50 kJ/m² @Temperature -30.0 °C	ISO 179/1eA
	6.00 kJ/m² @Temperature 23.0 °C	ISO 179/1eA
Tensile Creep Modulus, 1000 hours	1400 MPa	0.5 percent; ISO 899-1

Electrical Properties	Original Value	Comments
Electrical Resistivity	1.00e+14 ohm-cm	IEC 60093
Surface Resistance	1.00e+14 ohm	IEC 60093
Dielectric Constant	3.8 @Frequency 50 Hz	IEC 60250
	3.8 @Frequency 1e+6 Hz	IEC 60250
Dielectric Strength	40.0 kV/mm @Thickness 1.00 mm	IEC 60243-1
Dissipation Factor	0.0010 @Frequency 50 Hz	IEC 60250
	0.0050 @Frequency 1e+6 Hz	IEC 60250
Comparative Tracking Index	600 V	IEC 60112

Thermal Properties	Original Value	Comments
CTE, linear, Transverse to Flow	110 µm/m-°C	ISO 11359
Specific Heat Capacity	1.47 J/g-°C	IEC 1006
Thermal Conductivity	0.310 W/m-K	DIN 52 612
Maximum Service Temperature, Air	90.5 °C	long term
	140 °C	short term
Vicat Softening Point	150 °C @Load 5.10 kg	point B; ISO 306 VST/B/50
Minimum Service Temperature, Air	-50.0 °C
Flammability, UL94	HB @Thickness 0.800 mm	IEC 60695-11-10

Descriptive Properties
LOI Acid Index (%)	15	ISO 4589

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PPOLYPL928 / 197638

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