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Rulon Bearings

Celanese Celanex® 3316HR PBT, 30% Glass Reinforced
Categories: Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT); Polybutylene Terephthalate (PBT), 30% Glass Fiber Filled

Material Notes: Celanex 3316HR is a flame retarded, hydrolysis resistant, 30% fiberglass reinforced polybutylene terephthalate which has an excellent balance of mechanical properties and processability.

Information provided by Celanese

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Physical PropertiesMetricEnglishComments
Density 1.607 g/cc0.05806 lb/in³ISO 1183
Water Absorption 0.050 %
@Temperature 22.8 °C
0.050 %
@Temperature 73.0 °F
24hr immersion; ASTM D570
Linear Mold Shrinkage, Flow 0.0010 - 0.0080 cm/cm0.0010 - 0.0080 in/inISO 294-4
Linear Mold Shrinkage, Transverse 0.0080 - 0.013 cm/cm0.0080 - 0.013 in/inISO 294-4
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength at Break 115 MPa16700 psi5mm/min; ISO 527-2/1A
Elongation at Break 2.5 %2.5 %5mm/min; ISO 527-2/1A
Tensile Modulus 9.85 GPa1430 ksi50mm/min; ISO 527-2/1A
Flexural Strength 175 MPa25400 psiISO 178
Flexural Modulus 8.95 GPa1300 ksiISO 178
Charpy Impact Unnotched 0.850 J/cm²4.04 ft-lb/in²ISO 179/1eU
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity >= 1.00e+15 ohm-cm>= 1.00e+15 ohm-cmIEC 60093
 4.40e+16 ohm-cm4.40e+16 ohm-cmASTM D257
Surface Resistance >= 1.00e+15 ohm>= 1.00e+15 ohmIEC 60093
Dielectric Constant 2.9
@Frequency 1e+6 Hz
2.9
@Frequency 1e+6 Hz
IEC 60250
Dissipation Factor 0.0145
@Frequency 1e+6 Hz
0.0145
@Frequency 1e+6 Hz
IEC 60250
Comparative Tracking Index 250 V250 VASTM D3638
 250 V250 VIEC 60112
 
Thermal PropertiesMetricEnglishComments
CTE, linear, Parallel to Flow 25.0 µm/m-°C13.9 µin/in-°FISO 11359-2
CTE, linear, Transverse to Flow 90.0 µm/m-°C50.0 µin/in-°FISO 11359-2
Melting Point 225 °C437 °F10°C/min; ISO 11357-1,-2,-3
Deflection Temperature at 1.8 MPa (264 psi) 202 °C396 °FISO 75-1, -2
Flammability, UL94 V-0
@Thickness 0.750 mm
V-0
@Thickness 0.0295 in
 
Processing PropertiesMetricEnglishComments
Processing Temperature 65.0 - 96.0 °C149 - 205 °Fcavity
 250 - 260 °C482 - 500 °Fhot runner
Feed Temperature 230 - 240 °C446 - 464 °F
Zone 1 230 - 240 °C446 - 464 °F
Zone 2 235 - 250 °C455 - 482 °F
Zone 3 235 - 250 °C455 - 482 °F
Zone 4 240 - 255 °C464 - 491 °F
Die Temperature 240 - 255 °C464 - 491 °F
Melt Temperature 235 - 255 °C455 - 491 °F
 260 °C500 °FISO 294
Mold Temperature 82.0 °C180 °FISO 294
Injection Velocity 300 mm/sec11.8 in/secISO 294
Drying Temperature 120 - 130 °C248 - 266 °F
Dry Time 4.00 hour4.00 hour
Moisture Content <= 0.020 %<= 0.020 %
Hold Pressure 48.0 MPa6960 psiISO 294
 
Descriptive Properties
Injection moldingYes
Injection speedmedium-fast
Processing conditions acc. ISO7792-2

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