BASF Ultraform® H 4320 UNC Q600 POM

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BASF Ultraform® H 4320 UNC Q600 POM
Categories:	Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM)
Material Notes:	Ultraform H 4320 UNC Q600 is an extrusion POM high molecular weight grade. This grade enables high extrusion rates with thick-walled product. It also exhibits high thermal stability and a low tendency to discolor. Applications: Typical applications include pipe and semi-finished parts for gear wheels, bearings and other mechanical elements. Information provided by BASF.
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Physical Properties	Original Value	Comments

Density	1.39 g/cc	ISO 1183
Moisture Absorption	0.200 %	50% RH; ISO 62
Water Absorption at Saturation	0.80 %	ISO 62
Linear Mold Shrinkage, Flow	0.022 cm/cm	ISO 294-4
Linear Mold Shrinkage, Transverse	0.021 cm/cm	ISO 294-4
Melt Flow	2.2 g/10 min @Load 2.16 kg, Temperature 190 °C	ISO 1133

Mechanical Properties	Original Value	Comments
Tensile Strength, Yield	32.0 MPa @Temperature 80.0 °C	ISO 527
	63.0 MPa @Temperature 23.0 °C	ISO 527
	93.0 MPa @Temperature -40.0 °C	ISO 527
Elongation at Break	31 %	Nominal; ISO 527
Elongation at Yield	10 %	ISO 527
Tensile Modulus	2600 MPa	ISO 527
Flexural Modulus	2700 MPa	ISO 178
Izod Impact, Notched (ISO)	4.00 kJ/m² @Temperature -40.0 °C	ISO 180
	5.00 kJ/m² @Temperature 23.0 °C	ISO 180
Charpy Impact Unnotched	180 kJ/m² @Temperature -30.0 °C	ISO 179
	250 kJ/m² @Temperature 23.0 °C	ISO 179
Charpy Impact, Notched	5.50 kJ/m² @Temperature -30.0 °C	ISO 179
	6.00 kJ/m² @Temperature 23.0 °C	ISO 179
Tensile Creep Modulus, 1000 hours	1300 MPa	ISO 899

Electrical Properties	Original Value	Comments
Volume Resistivity	1.00e+13 ohm-cm	IEC 60093
Surface Resistance	1.00e+13 ohm	IEC 60093
Dielectric Constant	3.8 @Frequency 100 Hz	IEC 60250
	3.8 @Frequency 1e+6 Hz	IEC 60250
Dielectric Strength	40.0 kV/mm	IEC 60243-1
Dissipation Factor	0.0010 @Frequency 100 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, Parallel to Flow	110 µm/m-°C
Melting Point	166 °C	ISO 3146
Deflection Temperature at 0.46 MPa (66 psi)	156 °C	ISO 75
Deflection Temperature at 1.8 MPa (264 psi)	95.0 °C	ISO 75

Processing Properties	Original Value	Comments
Rear Barrel Temperature	170 °C
Middle Barrel Temperature	180 °C
Front Barrel Temperature	200 °C
Adapter Temperature	175 °C
Die Temperature	175 °C
Melt Temperature	175 - 200 °C
Drying Temperature	80.0 - 100 °C @Time 7200 - 14400 sec
Moisture Content	<= 0.15 %

Descriptive Properties
Compression Ratio	3:1
L/D Ratio	20:1 to 25:1
Screw Parameters	3 to 5 flights	Transition Section
	40 percent	Metering Section

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PBASF8920 / 254878

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