BASF Ultraform® N 2640 E4 AT POM, Impact Modified

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BASF Ultraform® N 2640 E4 AT POM, Impact Modified
Categories:	Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM); Acetal Copolymer, Impact Modified
Material Notes:	Product Description: Ultraform® N 2640 E4 AT is an elastomer-modified injection molding POM grade with high toughness and high weld line strength. Availability: North America Additive: Impact Modifier Features: High Strength; High Toughness; Impact Modified Agency Ratings: EC 1907/2006 (REACH) RoSH Compliance: RoSH Compliant Processing Method: Injection Molding Information provided by BASF Corporation
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Physical Properties	Original Value	Comments

Density	1.28 g/cc	ISO 1183
Water Absorption	0.20 %	Equilibrium, 50% RH; ISO 62
Water Absorption at Saturation	1.0 %	ISO 62
Maximum Moisture Content	0.15
Linear Mold Shrinkage, Flow	0.018 cm/cm	ISO 294-4
Linear Mold Shrinkage, Transverse	0.018 cm/cm	ISO 294-4
Melt Flow	3.0 g/10 min @Load 2.16 kg, Temperature 190 °C	ISO 1133

Mechanical Properties	Original Value	Comments
Tensile Strength, Yield	5510 psi	ISO 527-2
Elongation at Break	>= 50 %	Nominal; ISO 527-2
Elongation at Yield	8.0 %	ISO 527-2
Tensile Modulus	232000 psi	ISO 527-1
Charpy Impact Unnotched	NB @Temperature -30.0 °C	ISO 179
	NB @Temperature 22.8 °C	ISO 179
Charpy Impact, Notched	5.20 ft-lb/in² @Temperature 22.8 °C	ISO 179
	8.10 ft-lb/in² @Temperature -30.0 °C	ISO 179

Electrical Properties	Original Value	Comments
Volume Resistivity	1.00e+14 ohm-cm	IEC 60093
Surface Resistance	1.00e+15 ohm	IEC 60093
Dielectric Constant	3.4 @Frequency 1e+6 Hz	IEC 60250
Dissipation Factor	0.0080 @Frequency 1e+6 Hz	IEC 60250
Comparative Tracking Index	600 V	Solution A; IEC 60112

Thermal Properties	Original Value	Comments
CTE, linear, Parallel to Flow	78.0 µin/in-°F	ISO 11359-2
Melting Point	331 °F	ISO 3146
Deflection Temperature at 1.8 MPa (264 psi)	158 °F	Unannealed; ISO 75-2/A

Processing Properties	Original Value	Comments
Melt Temperature	374 - 428 °F
Mold Temperature	140 - 176 °F
Drying Temperature	176 - 230 °F
Dry Time	2.00 - 4.00 hour
Injection Pressure	508 - 2470 psi

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PBASG2134 / 310827

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