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Elmet Technologies

BASF Ultradur® B 4500 PBT
Categories: Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT); Polybutylene Terephthalate (PBT), Unreinforced, Molded
Material Notes: Ultradur B4500 is a general-purpose injection molding grade for high-precision, high-toughness, and dimensionally stable engineering parts. It conforms to FDA requirements of 21 CFR 177.1660.
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Physical PropertiesMetricEnglishComments
Density 1.30 g/cc0.0470 lb/in³ISO 1183
Water Absorption 0.50 %0.50 %ISO 62
Moisture Absorption at Equilibrium 0.25 %0.25 %23°C/50% R.H.; ISO 62
Water Vapor Transmission 10.0 g/m²/day0.644 g/100 in²/dayASTM F 1249
Viscosity Number 130 cm³/g1.30 dl/g
Linear Mold Shrinkage, Flow 0.015 cm/cm0.015 in/inSheet
 0.016 cm/cm0.016 in/in60x60x2mm; ISO 294
Linear Mold Shrinkage, Transverse 0.015 cm/cm0.015 in/inSheet
 0.019 cm/cm0.019 in/in60x60x2mm; ISO 294
Melt Flow 24.7 g/10 min
@Load 2.16 kg,
Temperature 250 °C		24.7 g/10 min
@Load 4.76 lb,
Temperature 482 °F		ISO 1133
 
Mechanical PropertiesMetricEnglishComments
Ball Indentation Hardness 130 MPa18900 psiISO 2039-1
Tensile Strength, Yield 55.0 MPa7980 psi50mm/min; ISO 527-2
Elongation at Break >= 50 %>= 50 %50mm/min; ISO 527-2
Elongation at Yield 3.7 %3.7 %50mm/min; ISO 527-2
Modulus of Elasticity 2.50 GPa363 ksiISO 527-2
Flexural Strength 85.0 MPa12300 psiISO 178
Charpy Impact Unnotched 29.0 J/cm²138 ft-lb/in²ISO 179/1eU
Charpy Impact, Notched 0.600 J/cm²2.86 ft-lb/in²ISO 179/1eA
Dart Drop, Total Energy >= 140 J>= 103 ft-lbISO 6603-1
Tensile Creep Modulus, 1000 hours 1200 MPa174000 psielongation <0.5%, 23°C; ISO 899-1
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 1.00e+16 ohm-cm1.00e+16 ohm-cmIEC 93
Surface Resistance 1.00e+13 ohm1.00e+13 ohmIEC 93
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/mm3560 kV/inIEC 112
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 450 V450 VTest Liquid B; IEC 112
 550 V550 VTest Liquid A; IEC 112
 
Thermal PropertiesMetricEnglishComments
Specific Heat Capacity 1.50 J/g-°C0.359 BTU/lb-°FIEC 1006
Thermal Conductivity 0.270 W/m-K1.87 BTU-in/hr-ft²-°FDIN 52612
Melting Point 220 - 225 °C428 - 437 °FISO 11357-3
Maximum Service Temperature, Air 120 °C248 °Fat 50% loss of tensile strength after 20000h; IEC 216-1
 140 °C284 °Fat 50% loss of tensile strength after 5000h; IEC 216-1
 200 °C392 °F
Deflection Temperature at 0.46 MPa (66 psi) 165 °C329 °FISO 75-2
Deflection Temperature at 1.8 MPa (264 psi) 65.0 °C149 °FISO 75-2
Flammability, UL94  HB
@Thickness 1.60 mm		HB
@Thickness 0.0630 in
 HB
@Thickness 0.800 mm		HB
@Thickness 0.0315 in
 
Optical PropertiesMetricEnglishComments
Haze 1.0 %1.0 %ASTM D 1003
 
Processing PropertiesMetricEnglishComments
Melt Temperature 230 - 250 °C446 - 482 °FSemi-finished extrusion
 230 - 260 °C446 - 500 °FPipe extrusion
 230 - 280 °C446 - 536 °FCast-film extrusion
 230 - 280 °C446 - 536 °FCoating
 260 °C500 °Ffor shrinkage test
 250 - 275 °C482 - 527 °FInjection molding
Mold Temperature 40.0 - 70.0 °C104 - 158 °F
 60.0 °C140 °Ffor shrinkage test
 
Compliance PropertiesMetricEnglishComments
FDA YesYes21 CFR 177.1660
 
Descriptive Properties
ColorNatural
Commercial StatusNorth America and Europe
FormPellets
Impact ModifiedNo
Primary Processing TechniqueExtrusion, Film Extrusion and Injection Molding
ProcessingFilm Extrusion
 Injection Molding
 Other Extrusion
 Profile Extrusion
Special characteristicHeat stabilized or stable to heat
 Light stabilized or stable to light
 U.V. stabilized or stable to weather

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PBASF9087 / 84851

Ensinger PEI




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