SABIC VALOX™ 745 PBT (Asia)

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SABIC VALOX™ 745 PBT (Asia)
Categories:	Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT)
Material Notes:	30% mineral reinforced polyester improved toughness and low warpage. Typical applications are telephone ringer frames and card racks. Information provided by SABIC
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Physical Properties	Metric	English	Comments

Specific Gravity	1.44 g/cc	1.44 g/cc	ASTM D792
	1.46 g/cc	1.46 g/cc	ASTM D792
Water Absorption	0.090 %	0.090 %	24 hours; ASTM D570
Linear Mold Shrinkage, Flow	0.0060 - 0.0080 cm/cm @Thickness 1.50 - 3.20 mm	0.0060 - 0.0080 in/in @Thickness 0.0591 - 0.126 in	SABIC method
	0.0080 - 0.010 cm/cm @Thickness 3.20 mm	0.0080 - 0.010 in/in @Thickness 0.126 in	SABIC method
Linear Mold Shrinkage, Transverse	0.0060 - 0.0080 cm/cm @Thickness 1.50 - 3.20 mm	0.0060 - 0.0080 in/in @Thickness 0.0591 - 0.126 in	SABIC method
	0.0080 - 0.010 cm/cm @Thickness 3.20 mm	0.0080 - 0.010 in/in @Thickness 0.126 in	SABIC method

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell R	112	112	ASTM D785
Tensile Strength at Break	46.0 MPa	6670 psi	50 mm/min; ASTM D638
Tensile Strength, Yield	48.0 MPa	6960 psi	50 mm/min; ASTM D638
Flexural Yield Strength	89.0 MPa	12900 psi	1.3 mm/min, 50 mm span; ASTM D790
Flexural Modulus	3.44 GPa	499 ksi	1.3 mm/min, 50 mm span; ASTM D790
Izod Impact, Notched	0.800 J/cm	1.50 ft-lb/in	ASTM D256
Izod Impact, Unnotched	16.02 J/cm	30.01 ft-lb/in	ASTM D4812

Electrical Properties	Metric	English	Comments
Volume Resistivity	6.90e+16 ohm-cm	6.90e+16 ohm-cm	ASTM D257
Dielectric Constant	3.2 @Frequency 1e+6 Hz	3.2 @Frequency 1e+6 Hz	ASTM D150
	3.3 @Frequency 100 Hz	3.3 @Frequency 100 Hz	ASTM D150
Dielectric Strength	23.2 kV/mm @Thickness 3.20 mm	589 kV/in @Thickness 0.126 in	in air; ASTM D149
	24.8 kV/mm @Thickness 1.60 mm	630 kV/in @Thickness 0.0630 in	in oil; ASTM D149
Dissipation Factor	0.0020 @Frequency 100 Hz	0.0020 @Frequency 100 Hz	ASTM D150
	0.014 @Frequency 1e+6 Hz	0.014 @Frequency 1e+6 Hz	ASTM D150
Arc Resistance	120 - 180 sec	120 - 180 sec	ASTM D495
Comparative Tracking Index	250 - 400 V	250 - 400 V	UL 746A
Hot Wire Ignition, HWI	30 - 60 sec	30 - 60 sec	UL 746A
High Amp Arc Ignition, HAI	>= 120 arcs	>= 120 arcs	UL 746A
High Voltage Arc-Tracking Rate, HVTR	80.0 - 150 mm/min	3.15 - 5.91 in/min	UL 746A

Thermal Properties	Metric	English	Comments
CTE, linear, Parallel to Flow	75.6 µm/m-°C @Temperature -40.0 - 40.0 °C	42.0 µin/in-°F @Temperature -40.0 - 104 °F	ASTM E831
	139 µm/m-°C @Temperature 60.0 - 138 °C	77.2 µin/in-°F @Temperature 140 - 280 °F	ASTM E831
Deflection Temperature at 0.46 MPa (66 psi)	160 °C @Thickness 6.40 mm	320 °F @Thickness 0.252 in	unannealed; ASTM D648
Deflection Temperature at 1.8 MPa (264 psi)	87.0 °C @Thickness 6.40 mm	189 °F @Thickness 0.252 in	unannealed; ASTM D648
UL RTI, Electrical	105 °C	221 °F	UL 746B
UL RTI, Mechanical with Impact	105 °C	221 °F	UL 746B
UL RTI, Mechanical without Impact	105 °C	221 °F	UL 746B
Flammability, UL94	HB @Thickness 1.47 mm	HB @Thickness 0.0579 in	UL 94

Processing Properties	Metric	English	Comments
Nozzle Temperature	255 - 270 °C	491 - 518 °F	Injection Molding
Zone 1	245 - 255 °C	473 - 491 °F
Zone 2	250 - 260 °C	482 - 500 °F
Zone 3	255 - 265 °C	491 - 509 °F
Melt Temperature	255 - 275 °C	491 - 527 °F
Mold Temperature	65.0 - 95.0 °C	149 - 203 °F
Drying Temperature	120 °C	248 °F	Injection Molding
Dry Time	3.00 - 4.00 hour	3.00 - 4.00 hour	Injection Molding
	12.0 hour	12.0 hour	Cumulative; Injection Molding
Moisture Content	0.020 %	0.020 %
Back Pressure	0.300 - 0.700 MPa	43.5 - 102 psi
Shot Size	40 - 80 %	40 - 80 %
Vent Depth	0.00250 - 0.00380 cm	0.000984 - 0.00150 in
Screw Speed	50 - 80 rpm	50 - 80 rpm

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 view all the property values for this datasheet as they were originally entered into MatWeb.

PSABI10239 / 243706

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