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Rulon Bearings

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Celanese Celanex® 4016 PBT, Unfilled
Categories: Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT)
Material Notes: Non-exuding, unfilled, flame retardant polybutylene terephthalate which has an excellent balance of mechanical properties and processability. Celanex 4016 is well suited for applications requiring improved toughness.

Information provided by Celanese
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Physical PropertiesOriginal ValueComments
Specific Gravity 1.45 g/ccASTM D792
Density 1.45 g/ccISO 1183
Water Absorption 0.080 %
@Temperature 22.8 °C		24hr immersion; ASTM D570
Moisture Absorption 0.160 %23°C/50%RH; ISO 62
Linear Mold Shrinkage, Flow 0.017 - 0.019 cm/cmISO 294-4
 0.024 - 0.028 cm/cmASTM D955
Linear Mold Shrinkage, Transverse 0.017 - 0.019 cm/cmISO 294-4
 
Mechanical PropertiesOriginal ValueComments
Hardness, Rockwell M 60ISO 2039-2
Tensile Strength at Break 5150 psiASTM D638
Tensile Strength, Yield 55.0 MPa50mm/min; ISO 527-2/1A
 7300 psiASTM D638
Elongation at Break 37 %ASTM D638
 38 %50mm/min; ISO 527-2/1A
 38 %
Elongation at Yield 3.5 %ASTM D638
 3.7 %50mm/min; ISO 527-2/1A
Tensile Modulus 2800 MPa50mm/min; ISO 527-2/1A
 370000 psiASTM D638
Flexural Strength 76.0 MPaISO 178
 12400 psiASTM D790
Flexural Modulus 2630 MPaISO 178
 370000 psiASTM D790
Izod Impact, Notched 1.70 ft-lb/inASTM D256
Izod Impact, Notched (ISO) 7.70 kJ/m²ISO 180/1A
 NB
@Temperature 23.0 °C		ISO 180/1U
Charpy Impact Unnotched 245 kJ/m²ISO 179/1eU
 105 kJ/m²
@Temperature -30.0 °C		ISO 179/1eU
Charpy Impact, Notched 8.10 kJ/m²ISO 179/1eA
 8.10 kJ/m²
@Temperature -30.0 °C		ISO 179/1eA
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity 1.00e+15 ohm-cmIEC 60093
 1.00e+16 ohm-cmASTM D257
Surface Resistance 1.00e+15 ohmIEC 60093
Dielectric Constant 3.1
@Frequency 1e+6 Hz		IEC 60250
 3.1
@Frequency 100 Hz		IEC 60250
 3.4
@Frequency 1e+6 Hz		ASTM D150
Dielectric Strength 50.0 kV/mmIEC 60243-1
 >= 700 V/milshort term; ASTM D149
Dissipation Factor 0.010
@Frequency 1e+6 Hz		ASTM D150
 0.020
@Frequency 1e+6 Hz		IEC 60250
Arc Resistance 80 secASTM D495
Comparative Tracking Index 250 VASTM D3638
 250 VIEC 60112
 
Thermal PropertiesOriginal ValueComments
CTE, linear, Parallel to Flow 100 µm/m-°CISO 11359-2
CTE, linear, Transverse to Flow 100 µm/m-°CISO 11359-2
Melting Point 225 °C10°C/min; ISO 11357-1,-2,-3
 437 °FASTM D3418
Deflection Temperature at 0.46 MPa (66 psi) 159 °CISO 75-1, -2
 313 °FASTM D648
Deflection Temperature at 1.8 MPa (264 psi) 62.0 °CISO 75-1, -2
 145 °FASTM D648
Glass Transition Temp, Tg 48.0 °CISO 11357-1,-2,-3
Flammability, UL94 V-0
 V-0
@Thickness 0.850 mm
 
Processing PropertiesOriginal ValueComments
Processing Temperature 65.0 - 93.0 °Ccavity
 250 - 260 °Chot runner
Feed Temperature 230 - 240 °C
Zone 1 230 - 240 °C
Zone 2 235 - 250 °C
Zone 3 235 - 250 °C
Zone 4 240 - 255 °C
Die Temperature 250 - 255 °C
Melt Temperature 243 °CISO 294
 235 - 255 °C
Mold Temperature 82.0 °CISO 294
Injection Velocity 300 mm/secISO 294
Drying Temperature 120 - 130 °C
Dry Time 4.00 hour
Moisture Content <= 0.020 %
Hold Pressure 48.0 MPaISO 294
 
Descriptive Properties
Injection moldingYes
Injection speedmedium-fast
Processing conditions acc. ISO7792-2

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 go back to viewing the property data in MatWeb's normal format.

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