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Rulon Bearings

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Celanese Impet® 340R PET, 45% Glass Reinforced
Categories: Polymer; Renewable/Recycled Polymer; Thermoplastic; Polyester, TP; Polyethylene Terephthalate (PET); Polyethylene Terephthalate (PET), 50% Glass Reinforced
Material Notes: Impet 340R is a 45% glass-reinforced injection moldable polyester made with post consumer recycled PET. It provides an excellent combination of strength, stiffness, and high temperature resistance.

Information provided by Celanese
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Physical PropertiesOriginal ValueComments
Specific Gravity 1.70 g/ccASTM D792
Density 1.73 g/ccISO 1183
Water Absorption 0.060 %
@Temperature 22.8 °C		24hr immersion; ASTM D570
Linear Mold Shrinkage, Flow 0.0020 cm/cmISO 294-4
 0.0060 cm/cmASTM D955
Linear Mold Shrinkage, Transverse 0.0060 cm/cmISO 294-4
 
Mechanical PropertiesOriginal ValueComments
Hardness, Rockwell M 121ISO 2039-2
Tensile Strength at Break 174 MPa5mm/min; ISO 527-2/1A
 28500 psiASTM D638
Elongation at Break 1.7 %5mm/min; ISO 527-2/1A
 2.0 %ASTM D638
Tensile Modulus 16800 MPa50mm/min; ISO 527-2/1A
Flexural Strength 259 MPaISO 178
 42400 psiASTM D790
Flexural Modulus 15400 MPaISO 178
 2.10e+6 psiASTM D790
Izod Impact, Notched 2.00 ft-lb/inASTM D256
Izod Impact, Notched (ISO) 9.50 kJ/m²ISO 180/1A
Charpy Impact Unnotched 24.0 kJ/m²ISO 179/1eU
 21.0 kJ/m²
@Temperature -30.0 °C		ISO 179/1eU
Charpy Impact, Notched 11.0 kJ/m²ISO 179/1eA
 9.00 kJ/m²
@Temperature -30.0 °C		ISO 179/1eA
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity 1.00e+15 ohm-cmASTM D257
 1.00e+16 ohm-cmIEC 60093
Surface Resistance 1.00e+14 ohmASTM D257
Dielectric Constant 3.4
@Frequency 1e+6 Hz		ASTM D150
 3.5
@Frequency 1000 Hz		ASTM D150
 3.8
@Frequency 10000 Hz		ASTM D150
Dielectric Strength 540 V/milshort term; ASTM D149
Dissipation Factor 0.0060
@Frequency 1000 Hz		ASTM D150
 0.0090
@Frequency 10000 Hz		ASTM D150
 0.012
@Frequency 1e+6 Hz		ASTM D150
Arc Resistance 129 secASTM D495
Comparative Tracking Index 225 VIEC 60112
 250 VASTM D3638
 
Thermal PropertiesOriginal ValueComments
CTE, linear, Parallel to Flow 14.0 µm/m-°CISO 11359-2
CTE, linear, Transverse to Flow 83.0 µm/m-°CISO 11359-2
Melting Point 244 °C10°C/min; ISO 11357-1,-2,-3
Deflection Temperature at 0.46 MPa (66 psi) 240 °CISO 75-1, -2
Deflection Temperature at 1.8 MPa (264 psi) 229 °CISO 75-1, -2
 445 °FASTM D648
Glass Transition Temp, Tg 73.0 °CISO 11357-1,-2,-3
Flammability, UL94 HB
@Thickness 0.810 mm
Oxygen Index 22 %ISO 4589
 
Processing PropertiesOriginal ValueComments
Processing Temperature 110 - 121 °Ccavity
 260 - 290 °Chot runner
Feed Temperature 255 - 265 °C
Zone 1 255 - 265 °C
Zone 2 260 - 275 °C
Zone 3 260 - 275 °C
Zone 4 265 - 280 °C
Die Temperature 270 - 290 °C
Melt Temperature 260 - 290 °C
 285 °CISO 294
Mold Temperature 135 °CISO 294
Injection Velocity 275 mm/secISO 294
Drying Temperature 130 - 140 °C
Dry Time 4.00 hour
Moisture Content <= 0.010 %
Hold Pressure 60.0 MPaISO 294
 
Descriptive Properties
Injection moldingYes
Injection speedmedium-fast
Processing conditions acc. ISO7792-2

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