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Ensinger PEI

Celanese Crastin® SK645FR BK851 PBT-GF30FR(17)
Categories: Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT); Polybutylene Terephthalate (PBT), Glass Fiber Filled, Flame Retardant
Material Notes: 30% Glass Reinforced, Flame Retardant, Polybutylene Terephthalate

Former DuPont product acquired by Celanese in 2022.
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 PropertiesMetricEnglishComments
Density 1.69 g/cc0.0611 lb/in³ISO 1183
Melt Density 1.42 g/cc
@Temperature 250 °C		0.0513 lb/in³
@Temperature 482 °F
Viscosity Number 100 cm³/g1.00 dl/gISO 307, 1157, 1628
Linear Mold Shrinkage, Flow 0.0040 cm/cm0.0040 in/inISO 294-4, 2577
Linear Mold Shrinkage, Transverse 0.012 cm/cm0.012 in/inISO 294-4, 2577
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength at Break 110 MPa16000 psiISO 527-1/-2
Elongation at Break 2.6 %2.6 %ISO 527-1/-2
Tensile Modulus 11.0 GPa1600 ksiISO 527-1/-2
Flexural Strength 180 MPa26100 psiISO 178
Poissons Ratio 0.340.34
Charpy Impact Unnotched  5.00 J/cm²
@Temperature -30.0 °C		23.8 ft-lb/in²
@Temperature -22.0 °F		ISO 179/1eU
 5.00 J/cm²
@Temperature 23.0 °C		23.8 ft-lb/in²
@Temperature 73.4 °F		ISO 179/1eU
Charpy Impact, Notched  0.800 J/cm²
@Temperature -30.0 °C		3.81 ft-lb/in²
@Temperature -22.0 °F		ISO 179/1eA
 0.800 J/cm²
@Temperature 23.0 °C		3.81 ft-lb/in²
@Temperature 73.4 °F		ISO 179/1eA
 
Electrical PropertiesMetricEnglishComments
Dielectric Strength 28.0 kV/mm711 kV/inIEC 60243-1
Comparative Tracking Index 250 V250 VIEC 60112
 
Thermal PropertiesMetricEnglishComments
Melting Point 225 °C437 °F10°C/min; ISO 11357-1/-3
Glass Transition Temp, Tg 55.0 °C131 °F10°C/min; ISO 11357-1/-2
Flammability, UL94  V-0
@Thickness 0.750 mm		V-0
@Thickness 0.0295 in		IEC 60695-11-10
 V-0
@Thickness 1.50 mm		V-0
@Thickness 0.0591 in		IEC 60695-11-10
Oxygen Index 31 %31 %ISO 4589-1/-2
 
Processing PropertiesMetricEnglishComments
Melt Temperature 250 °C482 °FOptimum, Injection
 240 - 260 °C464 - 500 °FRange, Injection
Mold Temperature 80.0 °C176 °FOptimum, Injection
 30.0 - 130 °C86.0 - 266 °FInjection
Ejection Temperature 170 °C338 °FInjection
Drying Temperature 120 °C248 °FInjection
Dry Time 2.00 - 4.00 hour2.00 - 4.00 hourInjection, Dehumidified Dryer
Moisture Content <= 0.040 %<= 0.040 %Injection
Hold Pressure >= 60.0 MPa>= 8700 psiInjection
 
Descriptive Properties
AdditivesFlame retardant
Back pressureAs low as possible
Drying RecommendedyesInjection
FMVSS ClassDNIISO 3795 (FMVSS 302)
Part Marking Code>PBT-GF30FR(17)<ISO 11469
PolymerPBT-GF30 FR(17)
Processing Hold Pressure Time (s/mm)3Injection
Resin IdentificationPBT-GF30FR(17)ISO 1043

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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