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	Original Value	Comments

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

Mechanical Properties	Original Value	Comments
Tensile Strength, Yield	37.0 MPa	50mm/min; ISO 527
	37.0 MPa	2 in/min; ASTM Test
Elongation at Break	>= 50 %	50mm/min, Nominal strain; ISO 527
Elongation at Yield	17 %	50mm/min; ISO 527
	17 %	2 in/min; ASTM Test
Tensile Modulus	1300 MPa	1mm/min; ISO 527
	1360 MPa	ASTM Test
Flexural Modulus	1320 MPa	ASTM Test
Izod Impact, Notched	0.590 J/cm @Temperature -40.0 °C	ASTM Test
	1.55 J/cm @Thickness 3.17 mm	ASTM Test
Charpy Impact Unnotched	NB	ISO 179
	NB @Temperature -30.0 °C	ISO 179
Charpy Impact, Notched	1.80 J/cm²	ISO 179
	0.900 J/cm² @Temperature -30.0 °C	ISO 179
Tensile Creep Modulus, 1 hour	825 MPa	ISO 899
Tensile Creep Modulus, 1000 hours	575 MPa	ISO 899

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

Thermal Properties	Original Value	Comments
CTE, linear	80.0 µm/m-°C @Temperature -30.0 - 30.0 °C	ASTM Test
CTE, linear, Parallel to Flow	130 µm/m-°C	ISO 11359
Melting Point	166 °C	10 K/min
	166 °C	ASTM Test
Deflection Temperature at 0.46 MPa (66 psi)	129 °C	ASTM Test
	130 °C	ISO 75
Deflection Temperature at 1.8 MPa (264 psi)	70.0 °C	ISO 75
	71.0 °C	ASTM Test
Vicat Softening Point	120 °C	(50 °C/h / 50N) - B/50; ISO 306
Flammability, UL94	HB @Thickness 1.50 mm
	HB @Thickness 3.00 mm

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

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