Celanese Nilit Nilitop BT N Unfilled, Nucleated PBT

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Celanese Nilit Nilitop BT N Unfilled, Nucleated PBT
Categories:	Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT); Polybutylene Terephthalate (PBT), Unreinforced, Molded
Material Notes:	Description: Nilitop BT N is an unfilled, nucleated PBT that has excellent cycle times. Key characteristics: Good overall mechanical performance Low moisture absorption Excellent UV resistance Excellent surface finish Good thermal performance Information provided by NILIT.
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Physical Properties	Metric	English	Comments

Density	1.31 g/cc	0.0473 lb/in³	ASTM D792, ISO 1183
Water Absorption	0.20 %	0.20 %	23°C, 24h in H₂O; sim. ISO 62
Water Absorption at Saturation	0.50 %	0.50 %	sim. ISO 62
Linear Mold Shrinkage, Flow	0.018 cm/cm	0.018 in/in	Euronil
Linear Mold Shrinkage, Transverse	0.018 cm/cm	0.018 in/in	Euronil

Mechanical Properties	Metric	English	Comments
Tensile Strength, Yield	55.0 MPa	7980 psi	ISO 527, ASTM D638
Elongation at Break	35 %	35 %	ISO 527, ASTM D638
Elongation at Yield	4.0 %	4.0 %	ISO 527, ASTM D638
Flexural Yield Strength	85.0 MPa	12300 psi	ISO 178, ASTM D790
	25.0 MPa @Temperature 90.0 °C	3630 psi @Temperature 194 °F	ISO 178, ASTM D790
Flexural Modulus	2.20 GPa	319 ksi	ISO 178, ASTM D790
	0.500 GPa @Temperature 90.0 °C	72.5 ksi @Temperature 194 °F	ISO 178, ASTM D790
Izod Impact, Notched (ISO)	3.00 kJ/m² @Temperature -30.0 °C	1.43 ft-lb/in² @Temperature -22.0 °F	ISO 180/1A
	5.00 kJ/m² @Temperature 23.0 °C	2.38 ft-lb/in² @Temperature 73.4 °F	ISO 180/1A
Charpy Impact Unnotched	>= 25.0 J/cm²	>= 119 ft-lb/in²	ISO 179
	>= 4.00 J/cm² @Temperature -30.0 °C	>= 19.0 ft-lb/in² @Temperature -22.0 °F	ISO 179
Charpy Impact, Notched	0.600 J/cm²	2.86 ft-lb/in²	ISO 179
	0.400 J/cm² @Temperature -30.0 °C	1.90 ft-lb/in² @Temperature -22.0 °F	ISO 179

Electrical Properties	Metric	English	Comments
Dielectric Strength	19.0 kV/mm @Thickness 2.00 mm	483 kV/in @Thickness 0.0787 in	ASTM D149
Comparative Tracking Index	350 V @Thickness 3.20 mm	350 V @Thickness 0.126 in	Sol. B; IEC 112, UL 746A
	600 V @Thickness 3.20 mm	600 V @Thickness 0.126 in	Sol. A; IEC 112, UL 746A

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	130 °C	266 °F	20,000 hr; IEC 216
Deflection Temperature at 0.46 MPa (66 psi)	182 °C	360 °F	ISO 75, ASTM D648
Deflection Temperature at 1.8 MPa (264 psi)	65.0 °C	149 °F	ISO 75, ASTM D648
Vicat Softening Point	191 °C	376 °F	49 N; ISO 306, ASTM D1525
	205 °C	401 °F	9.8 N; ISO 306, ASTM D1525
Flammability, UL94	HB @Thickness 0.800 mm	HB @Thickness 0.0315 in
	HB @Thickness 3.20 mm	HB @Thickness 0.126 in
Oxygen Index	22 %	22 %	ASTM D2863
Glow Wire Flammability Index	850 °C @Thickness 3.20 mm	1560 °F @Thickness 0.126 in	IEC 694-2-12
	850 °C @Thickness 0.800 mm	1560 °F @Thickness 0.0315 in	IEC 694-2-12

Descriptive Properties
Heat Resistance - Ball Test	OK		at 125°C, IEC 309
	OK		at 165°C, IEC 309

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.

PLBN59 / 50448

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