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BASF Ultradur B 6550 PBT

Category Polymer , Thermoplastic , Polyester, TP , Polybutylene Terephthalate (PBT) , Polybutylene Terephthalate (PBT), Unreinforced, Molded
Manufacturer BASF
Trade Name Ultradur B
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF BASF Ultradur B 6550 PBT.pdf
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Material Notes:
Ultradur B 6550 is a high viscosity PBT extrusion grade.Applications; Used for loose buffer tubes for optical fibers, semi-finished products fro machining, profiles and pipes.
Physical Properties Metric English Comments
Density 1.30 g/cc
0.0470 lb/in³
ISO 1183
Water Absorption 0.50 %
0.50 %
DIN 53495/1L
Moisture Absorption at Equilibrium 0.25 %
0.25 %
23°C/50% R.H.
Viscosity Test 160 cm³/g
160 cm³/g
Viscosity number
Linear Mold Shrinkage, Flow 0.015 cm/cm
0.015 in/in
Sheet
0.017 cm/cm
0.017 in/in
60x60x2mm; ISO 294
Linear Mold Shrinkage, Transverse 0.015 cm/cm
0.015 in/in
Sheet
0.021 cm/cm
0.021 in/in
60x60x2mm; ISO 294
Melt Flow 11.7 g/10 min

@Load 2.16 kg,
Temperature 250 °C
 11.7 g/10 min

@Load 4.76 lb,
Temperature 482 °F
 ISO 1133
Mechanical Properties Metric English Comments
Ball Indentation Hardness 130 MPa
18900 psi
ISO 2039-1
Tensile Strength, Yield 54.0 MPa
7830 psi
50mm/min; ISO 527-2
Elongation at Break >= 100 %
>= 100 %
50mm/min; ISO 527-2
Elongation at Yield 3.5 %
3.5 %
50mm/min; ISO 527-2
Modulus of Elasticity 2.40 GPa
348 ksi
ISO 527-2
Flexural Strength 85.0 MPa
12300 psi
ISO 178
Charpy Impact Unnotched NB
NB
ISO 179/1eU
Charpy Impact, Notched 0.600 J/cm²
2.86 ft-lb/in²
ISO 179/1eA
Dart Drop, Total Energy >= 140 J
>= 103 ft-lb
ISO 6603-1
Tensile Creep Modulus, 1000 hours 1100 MPa
160000 psi
elongation <0.5%, 23°C; ISO 899
Thermal Properties Metric English Comments
CTE, linear, Parallel to Flow 13.0 - 16.0 µm/m-°C

@Temperature 23.0 - 80.0 °C
 7.22 - 8.89 µin/in-°F

@Temperature 73.4 - 176 °F
Specific Heat Capacity 1.50 J/g-°C
0.359 BTU/lb-°F
IEC 1006
Thermal Conductivity 0.270 W/m-K
1.87 BTU-in/hr-ft²-°F
DIN 52612
Melting Point 220 - 225 °C
428 - 437 °F
10 K/min
Maximum Service Temperature, Air 120 °C
248 °F
at 50% loss of tensile strength after 20000h; IEC 216-1
140 °C
284 °F
200 °C
392 °F
Deflection Temperature at 0.46 MPa (66 psi) 135 °C
275 °F
ISO 75-2
Deflection Temperature at 1.8 MPa (264 psi) 55.0 °C
131 °F
ISO 75-2
Flammability, UL94 HB

@Thickness 0.800 mm
 HB

@Thickness 0.0315 in
HB

@Thickness 1.60 mm
 HB

@Thickness 0.0630 in
Electrical Properties Metric English Comments
Volume Resistivity 1.00e+16 ohm-cm
1.00e+16 ohm-cm
IEC 60093
Surface Resistance 1.00e+13 ohm
1.00e+13 ohm
IEC 60093
Dielectric Constant 3.3

@Frequency 100 Hz
 3.3

@Frequency 100 Hz
 IEC 60250
3.3

@Frequency 1.00e+6 Hz
 3.3

@Frequency 1.00e+6 Hz
 IEC 60250
Dielectric Strength 140 kV/mm
3560 kV/in
IEC 243/1
Dissipation Factor 0.0010

@Frequency 100 Hz
 0.0010

@Frequency 100 Hz
 IEC 60250
0.020

@Frequency 1.00e+6 Hz
 0.020

@Frequency 1.00e+6 Hz
 IEC 60250
Comparative Tracking Index 600 V
600 V
IEC 60112
Processing Properties Metric English Comments
Melt Temperature 250 - 270 °C
482 - 518 °F
Pipe Extrusion
260 °C
500 °F
for shrinkage test
250 - 275 °C
482 - 527 °F
Injection molding
Mold Temperature 40.0 - 80.0 °C
104 - 176 °F
60.0 °C
140 °F
for shrinkage test
Descriptive Properties Value Comments
Color Natural
Commercial Status North America and Europe
FDA 21 CFR 177.1660
Form Pellets
Impact Modified No
Primary Processing Technique Extrusion
Processing Film Extrusion
Injection Molding
Other Extrusion
Profile Extrusion
Sheet Extrusion
Special characteristic Heat stabilized or stable to heat
Light stabilized or stable to light
U.V. stabilized or stable to weather
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