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Ensinger PEI

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BASF Ultradur® B 6550 LN PBT
Categories: Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT)

Material Notes: Description: High-viscosity grades for the extrusion of loose buffer tubes for optical fibers, semi-finished products for machining, profiles and pipes.

Information provided by BASF

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Physical PropertiesOriginal ValueComments
Density 1.30 g/ccISO 1183
Moisture Absorption at Equilibrium 0.25 %23°C; 50% RH
Water Absorption at Saturation 0.40 %DIN 53495/1L
Viscosity Test 160 cm³/gViscosity number; ISO 1628
Linear Mold Shrinkage, Flow 0.019 cm/cmSheet; ISO 294
Linear Mold Shrinkage, Transverse 0.022 cm/cmSheet; ISO 294
Melt Flow 11.7 g/10 min
@Load 2.16 kg,
Temperature 250 °C
ISO 1133
 
Mechanical PropertiesOriginal ValueComments
Tensile Strength at Break 56.0 MPa5 mm/min; ISO 527-2
Tensile Strength, Yield 56.0 MPa50 mm/min; ISO 527-2
Elongation at Break >= 3.5 %50mm/min; ISO 527-2
Elongation at Yield 3.5 %50 mm/min; ISO 527-2
 >= 50 %50 mm/min; ISO 527-2
Modulus of Elasticity 2.60 GPaISO 527-2
Flexural Strength 76.0 MPaISO 178
Charpy Impact Unnotched 220 kJ/m²
@Temperature -30.0 °C
ISO 179/1eU
 NB
@Temperature 23.0 °C
ISO 179/1eU
Charpy Impact, Notched 6.00 kJ/m²
@Temperature 23.0 °C
ISO 179/1eA
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity 5.00e+15 ohm-cmIEC 93
Surface Resistance >= 1.00e+15 ohmIEC 93
Dielectric Constant 3.2
@Frequency 1e+6 Hz
IEC 250
 3.4
@Frequency 100 Hz
IEC 250
Dielectric Strength 39.0 kV/mmIEC 243/1
Dissipation Factor 0.0019
@Frequency 100 Hz
IEC 250
 0.0219
@Frequency 1e+6 Hz
IEC 250
Comparative Tracking Index 475 VTest solution A; IEC 112
 
Thermal PropertiesOriginal ValueComments
CTE, linear, Parallel to Flow 9.00 - 15.0 µm/m-°C
@Temperature 23.0 - 80.0 °C
DIN 53752
Melting Point 220 - 225 °CDSC; ISO 11357-3
Deflection Temperature at 0.46 MPa (66 psi) 135 °CISO 75-2
Deflection Temperature at 1.8 MPa (264 psi) 55.0 °CISO 75-2
Decomposition Temperature >= 290 °C
Flammability, UL94 HB
@Thickness 1.60 mm
 HB
@Diameter 0.400 mm
Ignition Temperature 350 °CASTM D1929
 
Processing PropertiesOriginal ValueComments
Melt Temperature 250 - 270 °CPipe extrusion
 250 - 270 °CSemi-finished extrusion
 260 °Cfor shrinkage test
 260 - 270 °CInjection-molding
Mold Temperature 40.0 - 80.0 °CInjection molding
 60.0 °Cfor shrinkage test
 
Descriptive Properties
ColorNatural
Commercial StatusEurope
Primary Processing TechniqueCoating and Injection Molding

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