BASF Ultradur® B 6550 L PBT

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BASF Ultradur® B 6550 L PBT
Categories:	Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT); Polybutylene Terephthalate (PBT), Unreinforced, Molded
Material Notes:	Ultradur B 6550 L 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	0.016 cm/cm	0.016 in/in	Sheet
Linear Mold Shrinkage, Transverse	0.017 cm/cm	0.017 in/in	Sheet
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
Tensile Strength, Yield	56.0 MPa	8120 psi	50mm/min; ISO 527
Elongation at Break	>= 100 %	>= 100 %	50mm/min; ISO 527
Elongation at Yield	3.5 %	3.5 %	50mm/min; ISO 527
Modulus of Elasticity	2.50 GPa	363 ksi	ISO 527-2
Flexural Strength	75.0 MPa	10900 psi	ISO 178
Charpy Impact Unnotched	NB	NB	ISO 179/1eU
Charpy Impact, Notched	0.700 J/cm²	3.33 ft-lb/in²	ISO 179/1eA

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.00e+16 ohm-cm	1.00e+16 ohm-cm	IEC 60093
Surface Resistance	>= 5.00e+13 ohm	>= 5.00e+13 ohm	IEC 60093
Dielectric Constant	3.2 @Frequency 1e+6 Hz	3.2 @Frequency 1e+6 Hz	IEC 60250
	3.4 @Frequency 100 Hz	3.4 @Frequency 100 Hz	IEC 60250
Dielectric Strength	31.0 kV/mm	787 kV/in	IEC 243/1
Dissipation Factor	0.0013 @Frequency 100 Hz	0.0013 @Frequency 100 Hz	IEC 60250
	0.0221 @Frequency 1e+6 Hz	0.0221 @Frequency 1e+6 Hz	IEC 60250
Comparative Tracking Index	375 V	375 V	Test solution B; IEC 60112
	600 V	600 V	Test solution A; IEC 60112

Thermal Properties	Metric	English	Comments
Melting Point	220 - 225 °C	428 - 437 °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 1.60 mm	HB @Thickness 0.0630 in
	HB @Thickness 0.800 mm	HB @Thickness 0.0315 in

Processing Properties	Metric	English	Comments
Melt Temperature	250 - 270 °C	482 - 518 °F
	260 °C	500 °F
	250 - 275 °C	482 - 527 °F	Injection molding
Mold Temperature	40.0 - 80.0 °C	104 - 176 °F

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

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PBASF9091 / 84855

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