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Rulon Bearings

Celanese Riteflex® 647 Thermoplastic Polyester Elastomer (TPE)
Categories: Polymer; Thermoplastic; Elastomer, TPE; Polyester TPE; Polyester, TP; Polyester Thermoplastic Elastomer
Material Notes: Description: Riteflex 647 is a thermoplastic elastomer with a 47 Shore D hardness and a 21,300psi flexural modulus

Information provided by Celanese Corporation.
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Physical PropertiesMetricEnglishComments
Density 1.17 g/cc0.0423 lb/in³ISO 1183 & ASTM D792
Water Absorption 0.50 %0.50 %ASTM D570
Linear Mold Shrinkage 0.013 cm/cm0.013 in/inASTM D955
Melt Flow 10 g/10 min10 g/10 minASTM D1238
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore D 4747ASTM D2240 & ISO 868
Tensile Strength at Break 22.5 MPa3260 psiASTM D638
Elongation at Break 470 %470 %ASTM D638
Tensile Modulus 0.125 GPa18.1 ksi1 mm/min; ISO 527-2/1A
 0.151 GPa21.9 ksiASTM D638
50% Modulus 12.0 MPa
@Strain 50 %		12.0 MPa
@Strain 50 %		ISO 527-2/1A
Flexural Modulus 0.125 GPa18.1 ksiISO 178
 0.147 GPa21.3 ksiASTM D790
 0.371 GPa
@Temperature -40.0 °C		53.8 ksi
@Temperature -40.0 °F		ASTM D790
Izod Impact, Notched NBNBASTM D256
 2.72 J/cm
@Temperature -40.0 °C		5.10 ft-lb/in
@Temperature -40.0 °F		ASTM D256
Charpy Impact Unnotched NBNBISO 179/1eU
 NB
@Temperature -30.0 °C		NB
@Temperature -22.0 °F		ISO 179/1eU
Charpy Impact, Notched NBNBISO 179/1eA
 NB
@Temperature -30.0 °C		NB
@Temperature -22.0 °F		ISO 179/1eA
Tear Strength 188.4 kN/m1075 pliASTM D624
 195 kN/m1110 pliASTM D1004
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 4.00e+14 ohm-cm4.00e+14 ohm-cmASTM D257
Dielectric Strength 12.2 kV/mm310 kV/inShort Term; ASTM D149
 13.0 kV/mm330 kV/inIEC 60243-1
Dissipation Factor 0.040
@Frequency 1e+6 Hz		0.040
@Frequency 1e+6 Hz		IEC 60250
Comparative Tracking Index >= 600 V>= 600 VASTM D3638 & IEC 60112
 
Thermal PropertiesMetricEnglishComments
CTE, linear 200 µm/m-°C
@Temperature 20.0 °C		111 µin/in-°F
@Temperature 68.0 °F		ISO 11359-2
Melting Point 187 °C369 °FISO 11357-1,2,3
 190 °C374 °FASTM D3419
Deflection Temperature at 0.46 MPa (66 psi) 62.0 °C144 °FISO 75-1, -2
 
Processing PropertiesMetricEnglishComments
Rear Barrel Temperature 185 - 200 °C365 - 392 °F
Middle Barrel Temperature 200 - 210 °C392 - 410 °F
Front Barrel Temperature 200 - 215 °C392 - 419 °F
Nozzle Temperature 200 - 215 °C392 - 419 °F
Melt Temperature 200 - 215 °C392 - 419 °F
Mold Temperature 20.0 - 55.0 °C68.0 - 131 °F
Injection Pressure 82.7 MPa12000 psi
Back Pressure 0.000 - 0.345 MPa0.000 - 50.0 psi

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