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Ensinger PEI

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SABIC VALOX™ FR 4631 PBT (Europe)
Categories: Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT)

Material Notes: VALOX 4631 is a 30% glass filled, flame retardant Polybutylene Terephthalate (PBT) injection moldable grade. It has good electrical and mechanical properties and a UL94V0@0.75 flame rating.

Information provided by SABIC

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Physical PropertiesOriginal ValueComments
Specific Gravity 1.67 g/ccASTM D792
Density 1.67 g/ccISO 1183
Filler Content 30 %ASTM D229
Water Absorption 0.25 %23°C/sat; ISO 62
Moisture Absorption 0.0700 %23°C / 50% RH; ISO 62
Viscosity 115 cP
@Shear Rate 1500 1/s,
Temperature 260 °C
melt; ISO 11443
Linear Mold Shrinkage, Flow 0.0010 - 0.0030 cm/cmSABIC method
Linear Mold Shrinkage, Transverse 0.0040 - 0.0070 cm/cmSABIC method
Melt Flow 13 g/10 min
@Load 2.16 kg,
Temperature 250 °C
ASTM D1238
 40 g/10 min
@Load 5.00 kg,
Temperature 250 °C
cm³/10 min; ISO 1133
 65 g/10 min
@Load 5.00 kg,
Temperature 265 °C
cm³/10 min; ISO 1133
 67 g/10 min
@Load 5.00 kg,
Temperature 250 °C
ASTM D1238
 90 g/10 min
@Load 5.00 kg,
Temperature 266 °C
ASTM D1238
 90 g/10 min
@Load 5.00 kg,
Temperature 265 °C
ASTM D1238
 
Mechanical PropertiesOriginal ValueComments
Hardness, Rockwell R 118ISO 2039-2
Ball Indentation Hardness 115 MPaISO 2039-1
Tensile Strength at Break 130 MPa5 mm/min; ISO 527
 130 MPa5 mm/min; ASTM D638
Tensile Strength, Yield 130 MPa5 mm/min; ISO 527
 130 MPa5 mm/min; ASTM D638
Elongation at Break 2.0 %5 mm/min; ASTM D638
 2.0 %5 mm/min; ISO 527
Elongation at Yield 2.0 %5 mm/min; ASTM D638
 2.0 %5 mm/min; ISO 527
Tensile Modulus 11500 MPa1mm/min; ISO 527
 11500 MPa5 mm/min; ASTM D638
Flexural Strength 200 MPa2 mm/min; break; ISO 178
 200 MPabrk, 1.3 mm/min, 50 mm span; ASTM D790
Flexural Yield Strength 200 MPa2 mm/min; ISO 178
 200 MPa1.3 mm/min, 50 mm span; ASTM D790
Flexural Modulus 9000 MPa1.3 mm/min, 50 mm span; ASTM D790
 9600 MPa2 mm/min; ISO 178
Flexural Strain at Break 3.0 %2 mm/min; ISO 178
Izod Impact, Notched 80.0 J/mASTM D256
 80.0 J/m
@Temperature 0.000 °C
ASTM D256
 80.0 J/m
@Temperature -30.0 °C
ASTM D256
Izod Impact, Unnotched 660 J/mASTM D4812
 660 J/m
@Temperature -30.0 °C
ASTM D4812
Izod Impact, Notched (ISO) 8.00 kJ/m²80*10*4; ISO 180/1A
 8.00 kJ/m²
@Temperature 0.000 °C
80*10*4; ISO 180/1A
 8.00 kJ/m²
@Temperature -30.0 °C
80*10*4; ISO 180/1A
Izod Impact, Unnotched (ISO) 45.0 kJ/m²80*10*4; ISO 180/1U
 45.0 kJ/m²
@Temperature -30.0 °C
80*10*4; ISO 180/1U
Charpy Impact Unnotched 50.0 kJ/m²Edgew 80*10*4 sp=62mm; ISO 179/1eU
 50.0 kJ/m²ISO 179/2C
 50.0 kJ/m²
@Temperature -30.0 °C
ISO 179/2C
 55.0 kJ/m²
@Temperature -30.0 °C
Edgew 80*10*4 sp=62mm; ISO 179/1eU
Charpy Impact, Notched 10.0 kJ/m²Edgew 80*10*4 sp=62mm; ISO 179/1eA
 11.0 kJ/m²ISO 179/2C
 9.00 kJ/m²
@Temperature -30.0 °C
ISO 179/2C
 10.0 kJ/m²
@Temperature -30.0 °C
Edgew 80*10*4 sp=62mm; ISO 179/1eA
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity >= 1.00e+15 ohm-cmIEC 60093
 >= 1.00e+15 ohm-cmASTM D257
Surface Resistance >= 1.00e+15 ohmROA; IEC 60093
Dielectric Constant 3.0
@Frequency 50.0 - 60.0 Hz
IEC 60250
 3.5
@Frequency 1e+6 Hz
ASTM D150
 3.5
@Frequency 1e+6 Hz
IEC 60250
Dielectric Strength 19.0 kV/mm
@Thickness 3.20 mm
in oil; IEC 60243-1
 23.0 kV/mm
@Thickness 1.60 mm
in oil; IEC 60243-1
 27.0 kV/mm
@Thickness 0.800 mm
in oil; IEC 60243-1
Dissipation Factor 0.0010
@Frequency 50.0 - 60.0 Hz
IEC 60250
 0.010
@Frequency 1e+6 Hz
IEC 60250
 0.010
@Frequency 1e+6 Hz
ASTM D150
Comparative Tracking Index 250 VIEC 60112
 250 - 400 VUL 746A
Hot Wire Ignition, HWI >= 120 secUL 746A
High Amp Arc Ignition, HAI 15 - 30 arcsUL 746A
High Voltage Arc-Tracking Rate, HVTR >= 150 mm/minUL 746A
 
Thermal PropertiesOriginal ValueComments
CTE, linear, Parallel to Flow 14.0 µm/m-°C
@Temperature 23.0 - 150 °C
ISO 11359-2
 16.0 µm/m-°C
@Temperature 23.0 - 80.0 °C
ISO 11359-2
 21.8 µm/m-°C
@Temperature -40.0 - 40.0 °C
ISO 11359-2
CTE, linear, Transverse to Flow 81.8 µm/m-°C
@Temperature -40.0 - 40.0 °C
ISO 11359-2
 120 µm/m-°C
@Temperature 23.0 - 80.0 °C
ISO 11359-2
 130 µm/m-°C
@Temperature 23.0 - 150 °C
ISO 11359-2
Hot Ball Pressure Test 125 °CIEC 60695-10-2
Deflection Temperature at 0.46 MPa (66 psi) 220 °CEdgew 120*10*4 sp=100mm; ISO 75/Be
 220 °CFlatw 80*10*4 sp=64mm; ISO 75/Bf
 220 °C
@Thickness 3.20 mm
unannealed; ASTM D648
Deflection Temperature at 1.8 MPa (264 psi) 205 °CFlatw 80*10*4 sp=64mm; ISO 75/Af
 205 °C
@Thickness 3.20 mm
unannealed; ASTM D648
Vicat Softening Point 205 °CRate B/50; ISO 306
 205 °CRate B/120; ISO 306
 205 °CRate B/50; ASTM D1525
 220 °CRate A/50; ASTM D1525
 220 °CRate A/50; ISO 306
UL RTI, Electrical 130 °CUL 746B
UL RTI, Mechanical with Impact 130 °CUL 746B
UL RTI, Mechanical without Impact 140 °CUL 746B
Flammability, UL94 V-0
@Thickness 0.750 mm
UL 94
Oxygen Index 34 %ISO 4589
Glow Wire Test 960 °C
@Thickness 3.00 mm
IEC 60695-2-12
 
Processing PropertiesOriginal ValueComments
Processing Temperature 40.0 - 60.0 °CHopper Temperature
Nozzle Temperature 240 - 260 °CInjection Molding
Zone 1 230 - 245 °C
Zone 2 240 - 255 °C
Zone 3 245 - 265 °C
Melt Temperature 250 - 270 °C
Mold Temperature 40.0 - 100 °C
Drying Temperature 110 - 120 °CInjection Molding
Dry Time 2.00 - 4.00 hourInjection Molding
Moisture Content 0.020 %

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PSABI10333 / 243800

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