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Ensinger PEI

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DuPont Mobility and Materials Crastin® S650FR BK851 PBT-FR(17)  (discontinued **)
Categories: Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT); Polybutylene Terephthalate (PBT), Flame Retardant
Material Notes: Unreinforced, Flame Retardant, Polybutylene Terephthalate

While this product line has been acquired by Celanese, this specific grade had been disconued while still a DuPont product so it is listed here as a discontinued DuPont product.
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesOriginal ValueComments
Density 1.46 g/ccISO 1183
Linear Mold Shrinkage, Flow 0.018 cm/cmISO 294-4, 2577
Linear Mold Shrinkage, Transverse 0.016 cm/cmISO 294-4, 2577
 
Mechanical PropertiesOriginal ValueComments
Tensile Strength, Yield 65.0 MPaISO 527-1/-2
Elongation at Break 7.2 %Nominal; ISO 527-1/-2
Elongation at Yield 4.6 %ISO 527-1/-2
Tensile Modulus 3000 MPaISO 527-1/-2
Flexural Strength 100 MPaISO 178
Poissons Ratio 0.37ISO 527-1/-2
Charpy Impact Unnotched 55.0 kJ/m²
@Temperature -30.0 °C		ISO 179/1eU
 60.0 kJ/m²
@Temperature 23.0 °C		ISO 179/1eU
Charpy Impact, Notched 3.50 kJ/m²
@Temperature -30.0 °C		ISO 179/1eA
 4.00 kJ/m²
@Temperature 23.0 °C		ISO 179/1eA
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity >= 1.00e+15 ohm-cmIEC 62631-3-1
Surface Resistance 1.00e+13 ohmIEC 62631-3-2
Dielectric Constant 3.5
@Frequency 1e+6 Hz		IEC 62631-2-1
 3.7
@Frequency 100 Hz		IEC 62631-2-1
Dielectric Strength 33.0 kV/mmIEC 60243-1
Dissipation Factor 0.00074
@Frequency 100 Hz		IEC 62631-2-1
 0.017
@Frequency 1e+6 Hz		IEC 62631-2-1
 
Thermal PropertiesOriginal ValueComments
Melting Point 225 °C10°C/min; ISO 11357-1/-3
Deflection Temperature at 0.46 MPa (66 psi) 160 °CISO 75-1/-2
Deflection Temperature at 1.8 MPa (264 psi) 65.0 °CISO 75-1/-2
Flammability, UL94 V-0
@Thickness 0.750 mm		IEC 60695-11-10
 V-0
@Thickness 1.50 mm		IEC 60695-11-10
Oxygen Index 30 %ISO 4589-1/-2
 
Processing PropertiesOriginal ValueComments
Melt Temperature 250 °CInjection Optimum
 240 - 260 °CInjection
Mold Temperature 80.0 °CInjection Optimum
 30.0 - 130 °CInjection
Ejection Temperature 170 °C
Drying Temperature 120 °C
Dry Time 2.00 - 4.00 hourDehumidified Dryer
Moisture Content 0.040 %
Hold Pressure 60.0 MPa
 
Descriptive Properties
Back pressureAs low as possible
Drying Recommendedyes
FMVSS ClassDNIISO 3795 (FMVSS 302)
Hold pressure time (s/mm)3
Part Marking CodePBT-FR(17)ISO 11469
ProcessingInjection Molding
Regional AvailabilityAsia Pacific
 Europe
 Global
 Near East/Africa
 North America
 South and Central America
Resin IdentificationPBT-FR(17)ISO 1043

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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