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	Metric	English	Comments

Density	1.39 g/cc	0.0502 lb/in³	ISO 1183
Moisture Absorption	0.200 %	0.200 %	50% RH; ISO 62
Water Absorption at Saturation	0.80 %	0.80 %	ISO 62
Linear Mold Shrinkage, Flow	0.022 cm/cm	0.022 in/in	ISO 294-4
Linear Mold Shrinkage, Transverse	0.021 cm/cm	0.021 in/in	ISO 294-4
Melt Flow	2.2 g/10 min @Load 2.16 kg, Temperature 190 °C	2.2 g/10 min @Load 4.76 lb, Temperature 374 °F	ISO 1133

Mechanical Properties	Metric	English	Comments
Tensile Strength, Yield	32.0 MPa @Temperature 80.0 °C	4640 psi @Temperature 176 °F	ISO 527
	63.0 MPa @Temperature 23.0 °C	9140 psi @Temperature 73.4 °F	ISO 527
	93.0 MPa @Temperature -40.0 °C	13500 psi @Temperature -40.0 °F	ISO 527
Elongation at Break	31 %	31 %	Nominal; ISO 527
Elongation at Yield	10 %	10 %	ISO 527
Tensile Modulus	2.60 GPa	377 ksi	ISO 527
Flexural Modulus	2.70 GPa	392 ksi	ISO 178
Izod Impact, Notched (ISO)	4.00 kJ/m² @Temperature -40.0 °C	1.90 ft-lb/in² @Temperature -40.0 °F	ISO 180
	5.00 kJ/m² @Temperature 23.0 °C	2.38 ft-lb/in² @Temperature 73.4 °F	ISO 180
Charpy Impact Unnotched	18.0 J/cm² @Temperature -30.0 °C	85.7 ft-lb/in² @Temperature -22.0 °F	ISO 179
	25.0 J/cm² @Temperature 23.0 °C	119 ft-lb/in² @Temperature 73.4 °F	ISO 179
Charpy Impact, Notched	0.550 J/cm² @Temperature -30.0 °C	2.62 ft-lb/in² @Temperature -22.0 °F	ISO 179
	0.600 J/cm² @Temperature 23.0 °C	2.86 ft-lb/in² @Temperature 73.4 °F	ISO 179
Tensile Creep Modulus, 1000 hours	1300 MPa	189000 psi	ISO 899

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.00e+13 ohm-cm	1.00e+13 ohm-cm	IEC 60093
Surface Resistance	1.00e+13 ohm	1.00e+13 ohm	IEC 60093
Dielectric Constant	3.8 @Frequency 100 Hz	3.8 @Frequency 100 Hz	IEC 60250
	3.8 @Frequency 1e+6 Hz	3.8 @Frequency 1e+6 Hz	IEC 60250
Dielectric Strength	40.0 kV/mm	1020 kV/in	IEC 60243-1
Dissipation Factor	0.0010 @Frequency 100 Hz	0.0010 @Frequency 100 Hz	IEC 60250
	0.0050 @Frequency 1e+6 Hz	0.0050 @Frequency 1e+6 Hz	IEC 60250
Comparative Tracking Index	600 V	600 V	IEC 60112

Thermal Properties	Metric	English	Comments
CTE, linear, Parallel to Flow	110 µm/m-°C	61.1 µin/in-°F
Melting Point	166 °C	331 °F	ISO 3146
Deflection Temperature at 0.46 MPa (66 psi)	156 °C	313 °F	ISO 75
Deflection Temperature at 1.8 MPa (264 psi)	95.0 °C	203 °F	ISO 75

Processing Properties	Metric	English	Comments
Rear Barrel Temperature	170 °C	338 °F
Middle Barrel Temperature	180 °C	356 °F
Front Barrel Temperature	200 °C	392 °F
Adapter Temperature	175 °C	347 °F
Die Temperature	175 °C	347 °F
Melt Temperature	175 - 200 °C	347 - 392 °F
Drying Temperature	80.0 - 100 °C @Time 7200 - 14400 sec	176 - 212 °F @Time 2.00 - 4.00 hour
Moisture Content	<= 0.15 %	<= 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

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

PBASF8920 / 254878

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