Celanese Crastin® S600F20 BK851 PBT

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Celanese Crastin® S600F20 BK851 PBT
Categories:	Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT)
Material Notes:	Unreinforced Medium Viscosity Polybutylene Terephthalate Former DuPont product acquired by Celanese in 2022.
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Physical Properties	Metric	English	Comments

Density	1.31 g/cc	0.0473 lb/in³	ISO 1183
Melt Density	1.11 g/cc @Temperature 250 °C	0.0401 lb/in³ @Temperature 482 °F
Viscosity Measurement	1.08	1.08	Intrinsic viscosity; ISO 307, 1157, 1628
Linear Mold Shrinkage, Flow	0.017 cm/cm	0.017 in/in	ISO 294-4, 2577
Linear Mold Shrinkage, Transverse	0.016 cm/cm	0.016 in/in	ISO 294-4, 2577
Melt Flow	13 g/10 min @Load 2.16 kg, Temperature 250 °C	13 g/10 min @Load 4.76 lb, Temperature 482 °F	cm³/10min Volumetric; ISO 1133
	16 g/10 min @Load 2.16 kg, Temperature 250 °C	16 g/10 min @Load 4.76 lb, Temperature 482 °F	ISO 1133

Mechanical Properties	Metric	English	Comments
Tensile Strength, Yield	58.0 MPa	8410 psi	ISO 527-1/-2
Elongation at Break	40 %	40 %	Nominal; ISO 527-1/-2
Elongation at Yield	5.0 %	5.0 %	ISO 527-1/-2
Tensile Modulus	2.50 GPa	363 ksi	ISO 527-1/-2
Poissons Ratio	0.38	0.38
Izod Impact, Notched (ISO)	4.00 kJ/m² @Temperature 23.0 °C	1.90 ft-lb/in² @Temperature 73.4 °F	ISO 180/1A
Charpy Impact, Notched	0.500 J/cm² @Temperature 23.0 °C	2.38 ft-lb/in² @Temperature 73.4 °F	ISO 179/1eA

Electrical Properties	Metric	English	Comments
Volume Resistivity	>= 1.00e+15 ohm-cm	>= 1.00e+15 ohm-cm	IEC 62631-3-1
Surface Resistance	1.00e+14 ohm	1.00e+14 ohm	IEC 62631-3-2
Dielectric Constant	3.3 @Frequency 1e+6 Hz	3.3 @Frequency 1e+6 Hz	IEC 62631-2-1
	3.5 @Frequency 100 Hz	3.5 @Frequency 100 Hz	IEC 62631-2-1
Dielectric Strength	40.0 kV/mm	1020 kV/in	IEC 60243-1
Dissipation Factor	0.00040 @Frequency 100 Hz	0.00040 @Frequency 100 Hz	IEC 62631-2-1
	0.0182 @Frequency 1e+6 Hz	0.0182 @Frequency 1e+6 Hz	IEC 62631-2-1
Comparative Tracking Index	375 V	375 V	IEC 60112

Thermal Properties	Metric	English	Comments
Melting Point	224 °C	435 °F	10°C/min; ISO 11357-1/-3
Deflection Temperature at 0.46 MPa (66 psi)	135 °C	275 °F	ISO 75-1/-2
	180 °C	356 °F	Annealed; ISO 75-1/-2
Deflection Temperature at 1.8 MPa (264 psi)	50.0 °C	122 °F	ISO 75-1/-2
	60.0 °C	140 °F	Annealed; ISO 75-1/-2
Glass Transition Temp, Tg	55.0 °C	131 °F	10°C/min; ISO 11357-1/-2
Flammability, UL94	HB @Thickness 1.50 mm	HB @Thickness 0.0591 in	IEC 60695-11-10
	HB @Thickness 3.00 mm	HB @Thickness 0.118 in	IEC 60695-11-10
Flame Spread	24.0 mm/min @Thickness 1.00 mm	0.945 in/min @Thickness 0.0394 in	ISO 3795 (FMVSS 302)

Processing Properties	Metric	English	Comments
Melt Temperature	250 °C	482 °F	Optimum, Injection
	240 - 260 °C	464 - 500 °F	Range, Injection
Mold Temperature	80.0 °C	176 °F	Optimum, Injection
	30.0 - 130 °C	86.0 - 266 °F	Injection
Ejection Temperature	170 °C	338 °F	Injection
Drying Temperature	120 °C	248 °F	Injection
Dry Time	2.00 - 4.00 hour	2.00 - 4.00 hour	Injection, Dehumidified Dryer
Moisture Content	<= 0.040 %	<= 0.040 %	Injection
Hold Pressure	>= 60.0 MPa	>= 8700 psi	Injection

Descriptive Properties
Back pressure	As low as possible
Drying Recommended	yes		Injection
Emission of organic compounds (µgC/g)	290		VDA 277
FMVSS Class	B		ISO 3795 (FMVSS 302)
Fogging (mg)	0		G-value (condensate); ISO 6452; DS
Odor Class	3		VDA 270; DS
Part Marking Code	>PBT<		ISO 11469
Polymer	PBT
Processing Hold Pressure Time (s/mm)	4		Injection
Resin Identification	PBT		ISO 1043
Thermal desorption analysis of organic emissions (µg/g)	1		VDA 270

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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PDSX5041 / 197681

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