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DuPont Performance Polymers Crastin® SK608 BK509 Polybutylene Terephthalate (PBT)  (Unverified Data**)

Category Polymer , Thermoplastic , Polyester, TP , Polybutylene Terephthalate (PBT) , Polybutylene Terephthalate (PBT), 50% Glass Fiber Filled
Manufacturer DuPont Performance Polymers
Trade Name Crastin®
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF DuPont Performance Polymers Crastin® SK608 BK509 Polybutylene Terephthalate (PBT)  (Unverified Data**).pdf
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Material Notes:
45% Glass Reinforced Polybutylene Terephthalate Crastin SK608 BK509 is a 45% glass fiber reinforced lubricated black polybutylene terephthalate resin for injection molding.Information provided by DuPont Performance Polymers
Physical Properties Metric English Comments
Density 1.47 g/cc
0.0531 lb/in³
1.66 g/cc
0.0600 lb/in³
ISO 1183
Water Absorption 0.30 %

@Thickness 2.00 mm
 0.30 %

@Thickness 0.0787 in
 Sim. to ISO 62
Moisture Absorption 0.100 %

@Thickness 2.00 mm
 0.100 %

@Thickness 0.0787 in
 Sim. to ISO 62
Linear Mold Shrinkage, Flow 0.0030 cm/cm
0.0030 in/in
ISO 294-4 2577
Linear Mold Shrinkage, Transverse 0.011 cm/cm
0.011 in/in
ISO 294-4 2577
Mechanical Properties Metric English Comments
Tensile Strength at Break 140 MPa
20300 psi
ISO 527-1/-2
Tensile Stress 18.7 MPa

@Strain 0.270 %,
Temperature 90.0 °C
 2710 psi

@Strain 0.270 %,
Temperature 194 °F
 ISO 11403-1 -2
20.51 MPa

@Strain 0.150 %,
Temperature 23.0 °C
 2975 psi

@Strain 0.150 %,
Temperature 73.4 °F
 ISO 11403-1 -2
21.01 MPa

@Strain 0.210 %,
Temperature 40.0 °C
 3047 psi

@Strain 0.210 %,
Temperature 104 °F
 ISO 11403-1 -2
43.69 MPa

@Strain 0.800 %,
Temperature 90.0 °C
 6337 psi

@Strain 0.800 %,
Temperature 194 °F
 ISO 11403-1 -2
59.23 MPa

@Strain 1.42 %,
Temperature 90.0 °C
 8591 psi

@Strain 1.42 %,
Temperature 194 °F
 ISO 11403-1 -2
65.6 MPa

@Strain 0.750 %,
Temperature 40.0 °C
 9510 psi

@Strain 0.750 %,
Temperature 104 °F
 ISO 11403-1 -2
67.39 MPa

@Strain 2.03 %,
Temperature 90.0 °C
 9774 psi

@Strain 2.03 %,
Temperature 194 °F
 ISO 11403-1 -2
71.91 MPa

@Strain 0.580 %,
Temperature 23.0 °C
 10430 psi

@Strain 0.580 %,
Temperature 73.4 °F
 ISO 11403-1 -2
91.43 MPa

@Strain 1.30 %,
Temperature 40.0 °C
 13260 psi

@Strain 1.30 %,
Temperature 104 °F
 ISO 11403-1 -2
108.1 MPa

@Strain 1.00 %,
Temperature 23.0 °C
 15680 psi

@Strain 1.00 %,
Temperature 73.4 °F
 ISO 11403-1 -2
129.8 MPa

@Strain 1.43 %,
Temperature 23.0 °C
 18830 psi

@Strain 1.43 %,
Temperature 73.4 °F
 ISO 11403-1 -2
Elongation at Break 2.0 %
2.0 %
ISO 527-1/-2
Tensile Modulus 14.2 GPa
2060 ksi
ISO 527-1/-2
Flexural Strength 210 MPa
30500 psi
ISO 178
Flexural Modulus 13.3 GPa
1930 ksi
ISO 178
Shear Modulus 0.6417 GPa

@Temperature 160 °C
 93.07 ksi

@Temperature 320 °F
 Dynamic; ISO 11403-1 -2
0.812 GPa

@Temperature 120 °C
 118 ksi

@Temperature 248 °F
 Dynamic; ISO 11403-1 -2
1.167 GPa

@Temperature 70.0 °C
 169.2 ksi

@Temperature 158 °F
 Dynamic; ISO 11403-1 -2
2.263 GPa

@Temperature 20.0 °C
 328.3 ksi

@Temperature 68.0 °F
 Dynamic; ISO 11403-1 -2
2.438 GPa

@Temperature -20.0 °C
 353.7 ksi

@Temperature -4.00 °F
 Dynamic; ISO 11403-1 -2
2.578 GPa

@Temperature -50.0 °C
 374.0 ksi

@Temperature -58.0 °F
 Dynamic; ISO 11403-1 -2
Secant Modulus 6.275 GPa

@Strain 1.60 %,
Temperature 40.0 °C
 910.1 ksi

@Strain 1.60 %,
Temperature 104 °F
 ISO 11403-1 -2
8.75 GPa

@Strain 0.750 %,
Temperature 40.0 °C
 1270 ksi

@Strain 0.750 %,
Temperature 104 °F
 ISO 11403-1 -2
10.0 GPa

@Strain 0.210 %,
Temperature 40.0 °C
 1450 ksi

@Strain 0.210 %,
Temperature 104 °F
 ISO 11403-1 -2
10.193 GPa

@Strain 1.14 %,
Temperature 23.0 °C
 1478.4 ksi

@Strain 1.14 %,
Temperature 73.4 °F
 ISO 11403-1 -2
12.4 GPa

@Strain 0.580 %,
Temperature 23.0 °C
 1800 ksi

@Strain 0.580 %,
Temperature 73.4 °F
 ISO 11403-1 -2
13.7 GPa

@Strain 0.150 %,
Temperature 23.0 °C
 1980 ksi

@Strain 0.150 %,
Temperature 73.4 °F
 ISO 11403-1 -2
Izod Impact, Notched (ISO) 10.0 kJ/m²
4.76 ft-lb/in²
ISO 180/1A
10.0 kJ/m²

@Temperature -30.0 °C
 4.76 ft-lb/in²

@Temperature -22.0 °F
 ISO 180/1A
Charpy Impact Unnotched 5.50 J/cm²
26.2 ft-lb/in²
ISO 179/1eU
6.50 J/cm²

@Temperature -30.0 °C
 30.9 ft-lb/in²

@Temperature -22.0 °F
 ISO 179/1eU
Charpy Impact, Notched 1.00 J/cm²
4.76 ft-lb/in²
ISO 179/1eA
Thermal Properties Metric English Comments
CTE, linear, Parallel to Flow 20.0 µm/m-°C
11.1 µin/in-°F
ISO 11359-1/-2
CTE, linear, Transverse to Flow 80.0 µm/m-°C
44.4 µin/in-°F
ISO 11359-1/-2
Melting Point 225 °C
437 °F
10°C/min; ISO 11357-1/-3
Deflection Temperature at 0.46 MPa (66 psi) 222 °C
432 °F
ISO 75-1/-2
Deflection Temperature at 1.8 MPa (264 psi) 207 °C
405 °F
ISO 75-1/-2
Vicat Softening Point 215 °C
419 °F
50°C/h 50N; ISO 306
Flammability, UL94 HB

@Thickness 1.50 mm
 HB

@Thickness 0.0591 in
 IEC 60695-11-10
HB

@Thickness 0.800 mm
 HB

@Thickness 0.0315 in
 IEC 60695-11-10
Oxygen Index 20 %
20 %
ISO 4589-1/-2
Electrical Properties Metric English Comments
Volume Resistivity >= 1.00e+15 ohm-cm
>= 1.00e+15 ohm-cm
IEC 60093
Dielectric Constant 3.9

@Frequency 1.00e+6 Hz
 3.9

@Frequency 1.00e+6 Hz
 IEC 60250
4.1

@Frequency 100 Hz
 4.1

@Frequency 100 Hz
 IEC 60250
Dielectric Strength 32.0 kV/mm
813 kV/in
IEC 60243-1
Dissipation Factor 0.0038

@Frequency 100 Hz
 0.0038

@Frequency 100 Hz
 IEC 60250
0.013

@Frequency 1.00e+6 Hz
 0.013

@Frequency 1.00e+6 Hz
 IEC 60250
Comparative Tracking Index 475 V
475 V
IEC 60112
Descriptive Properties Value Comments
Additives Release agent
Delivery Form Pellets
Part Marking Code >PBT-GF45<
ISO 11469
Processing Injection Moulding
Other Extrusion
Profile Extrusion
Regional Availability Asia Pacific
Europe
Global
Near East/Africa
North America
South and Central America
Resin Identification PBT-GF45
UL recognition UL
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