BASF Ultraform® N 2640 Z6 UNC POM

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BASF Ultraform® N 2640 Z6 UNC POM
Categories:	Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM); Acetal Copolymer, Impact Modified
Material Notes:	Ultraform N 2640 Z6 UNC is an elastomer-modified injection molding POM grade with excellent impact strength.
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Physical Properties	Metric	English	Comments

Density	1.33 g/cc	0.0480 lb/in³	ISO 1183
Water Absorption	1.1 %	1.1 %	ISO 62
Moisture Absorption at Equilibrium	0.25 %	0.25 %	23°C/50% R.H.; ISO 62
Linear Mold Shrinkage	0.019 cm/cm	0.019 in/in	ASTM Data; MD
Linear Mold Shrinkage, Flow	0.016 cm/cm	0.016 in/in	ISO Data
Linear Mold Shrinkage, Transverse	0.016 cm/cm	0.016 in/in	ISO Data
Melt Flow	4.5 g/10 min @Load 2.16 kg, Temperature 190 °C	4.5 g/10 min @Load 4.76 lb, Temperature 374 °F	ISO 1133

Mechanical Properties	Metric	English	Comments
Tensile Strength, Yield	37.0 MPa	5370 psi	50mm/min; ISO 527
	37.0 MPa	5370 psi	2 in/min; ASTM Test
Elongation at Break	>= 50 %	>= 50 %	50mm/min, Nominal strain; ISO 527
Elongation at Yield	17 %	17 %	50mm/min; ISO 527
	17 %	17 %	2 in/min; ASTM Test
Tensile Modulus	1.30 GPa	189 ksi	1mm/min; ISO 527
	1.36 GPa	197 ksi	ASTM Test
Flexural Modulus	1.32 GPa	191 ksi	ASTM Test
Izod Impact, Notched	0.590 J/cm @Temperature -40.0 °C	1.11 ft-lb/in @Temperature -40.0 °F	ASTM Test
	1.55 J/cm @Thickness 3.17 mm	2.90 ft-lb/in @Thickness 0.125 in	ASTM Test
Charpy Impact Unnotched	NB	NB	ISO 179
	NB @Temperature -30.0 °C	NB @Temperature -22.0 °F	ISO 179
Charpy Impact, Notched	1.80 J/cm²	8.57 ft-lb/in²	ISO 179
	0.900 J/cm² @Temperature -30.0 °C	4.28 ft-lb/in² @Temperature -22.0 °F	ISO 179
Tensile Creep Modulus, 1 hour	825 MPa	120000 psi	ISO 899
Tensile Creep Modulus, 1000 hours	575 MPa	83400 psi	ISO 899

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.00e+11 ohm-cm	1.00e+11 ohm-cm	IEC 60093
Surface Resistance	1.00e+12 ohm	1.00e+12 ohm	IEC 60093
Dielectric Constant	4.3 @Frequency 1e+6 Hz	4.3 @Frequency 1e+6 Hz	IEC 60250
	4.5 @Frequency 100 Hz	4.5 @Frequency 100 Hz	IEC 60250
Dielectric Strength	36.0 kV/mm	914 kV/in	IEC 60243-1
Dissipation Factor	0.010 @Frequency 100 Hz	0.010 @Frequency 100 Hz	IEC 60250
	0.025 @Frequency 1e+6 Hz	0.025 @Frequency 1e+6 Hz	IEC 60250
Comparative Tracking Index	600 V	600 V	IEC 60112

Thermal Properties	Metric	English	Comments
CTE, linear	80.0 µm/m-°C @Temperature -30.0 - 30.0 °C	44.4 µin/in-°F @Temperature -22.0 - 86.0 °F	ASTM Test
CTE, linear, Parallel to Flow	130 µm/m-°C	72.2 µin/in-°F	ISO 11359
Melting Point	166 °C	331 °F	10 K/min
	166 °C	331 °F	ASTM Test
Deflection Temperature at 0.46 MPa (66 psi)	129 °C	264 °F	ASTM Test
	130 °C	266 °F	ISO 75
Deflection Temperature at 1.8 MPa (264 psi)	70.0 °C	158 °F	ISO 75
	71.0 °C	160 °F	ASTM Test
Vicat Softening Point	120 °C	248 °F	(50 °C/h / 50N) - B/50; ISO 306
Flammability, UL94	HB @Thickness 1.50 mm	HB @Thickness 0.0591 in
	HB @Thickness 3.00 mm	HB @Thickness 0.118 in

Descriptive Properties
Color	Natural
Commercial Status	North America and Europe
Form	Pellets
Impact Modified	Yes
Primary Processing Technique	Injection Molding
Processing	Injection Molding

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.

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PBASF9109 / 84873

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