BASF Ultradur® B 6550 PBT

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BASF Ultradur® B 6550 PBT
Categories:	Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT); Polybutylene Terephthalate (PBT), Unreinforced, Molded
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.
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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 Number	160 cm³/g	1.60 dl/g
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

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 1e+6 Hz	3.3 @Frequency 1e+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 1e+6 Hz	0.020 @Frequency 1e+6 Hz	IEC 60250
Comparative Tracking Index	600 V	600 V	IEC 60112

Thermal Properties	Metric	English	Comments
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

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

Compliance Properties	Metric	English	Comments
FDA	Yes	Yes	21 CFR 177.1660

Descriptive Properties
Color	Natural
Commercial Status	North America and Europe
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

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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PBASF9090 / 84854

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