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Rulon Bearings

Evonik Vestodur® GF50 nf PBT  (discontinued **)
Categories: Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT); Polybutylene Terephthalate (PBT), 50% Glass Fiber Filled

Material Notes: For the injection molding of very rigid and heat resistant parts.

ISO data as provided by the manufacturer.

Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Density 1.71 g/cc0.0618 lb/in³
Water Absorption 0.00 %0.00 %
Moisture Absorption at Equilibrium <= 0.50 %<= 0.50 %Humidity Absorption
Melt Flow 8.0 g/10 min8.0 g/10 min
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Ultimate 160 MPa23200 psi
Elongation at Break 1.0 %1.0 %
Modulus of Elasticity 15.0 GPa2180 ksi
Charpy Impact Unnotched 6.00 J/cm²28.6 ft-lb/in²
 6.50 J/cm²
@Temperature -30.0 °C
30.9 ft-lb/in²
@Temperature -22.0 °F
Charpy Impact, Notched 1.30 J/cm²6.19 ft-lb/in²
 1.20 J/cm²
@Temperature -30.0 °C
5.71 ft-lb/in²
@Temperature -22.0 °F
Tensile Impact Strength 80.0 kJ/m²38.1 ft-lb/in²
Tensile Creep Modulus, 1 hour 15000 MPa2.18e+6 psi
Tensile Creep Modulus, 1000 hours 10000 MPa1.45e+6 psi
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity >= 1.00e+15 ohm-cm>= 1.00e+15 ohm-cm
Surface Resistance 1.00e+14 ohm1.00e+14 ohm
Dielectric Constant  4.0
@Frequency 100 Hz
4.0
@Frequency 100 Hz
 4.0
@Frequency 1e+6 Hz
4.0
@Frequency 1e+6 Hz
Dielectric Strength 27.0 kV/mm686 kV/in
Dissipation Factor  0.0040
@Frequency 100 Hz
0.0040
@Frequency 100 Hz
 0.015
@Frequency 1e+6 Hz
0.015
@Frequency 1e+6 Hz
Comparative Tracking Index 500 V500 V
 
Thermal PropertiesMetricEnglishComments
CTE, linear, Parallel to Flow <= 50.0 µm/m-°C
@Temperature 20.0 °C
<= 27.8 µin/in-°F
@Temperature 68.0 °F
CTE, linear, Transverse to Flow <= 50.0 µm/m-°C
@Temperature 20.0 °C
<= 27.8 µin/in-°F
@Temperature 68.0 °F
Deflection Temperature at 0.46 MPa (66 psi) 220 °C428 °F
Deflection Temperature at 1.8 MPa (264 psi) 220 °C428 °F
Vicat Softening Point 215 °C419 °F50°C/hr/50 N
UL RTI, Electrical 130 °C266 °F
UL RTI, Mechanical with Impact 130 °C266 °F
UL RTI, Mechanical without Impact 140 °C284 °F
Flammability, UL94  HB
@Thickness 1.60 mm
HB
@Thickness 0.0630 in
 HB
@Thickness 3.20 mm
HB
@Thickness 0.126 in

**
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PHUM20 / 47453

Aluminum Castings

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