Overview of materials for Polybutylene Terephthalate (PBT), Glass Bead Filled

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Overview of materials for Polybutylene Terephthalate (PBT), Glass Bead Filled
Categories:	Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT); Polybutylene Terephthalate (PBT), Glass Bead Filled
Material Notes:	This property data is a summary of similar materials in the MatWeb database for the category "Polybutylene Terephthalate (PBT), Glass Bead Filled". Each property range of values reported is minimum and maximum values of appropriate MatWeb entries. The comments report the average value, and number of data points used to calculate the average. The values are not necessarily typical of any specific grade, especially less common values and those that can be most affected by additives or processing methods.
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Physical Properties	Metric	English	Comments

Density	1.25 - 1.73 g/cc	0.0452 - 0.0625 lb/in³	Average value: 1.52 g/cc Grade Count:67
Filler Content	10.0 - 40.0 %	10.0 - 40.0 %	Average value: 26.4 % Grade Count:11
Water Absorption	0.0500 - 0.500 %	0.0500 - 0.500 %	Average value: 0.158 % Grade Count:30
Moisture Absorption at Equilibrium	0.100 - 0.250 %	0.100 - 0.250 %	Average value: 0.166 % Grade Count:20
Water Absorption at Saturation	0.310 - 0.500 %	0.310 - 0.500 %	Average value: 0.395 % Grade Count:11
Viscosity	18.0 - 700000 cP @Temperature 230 - 270 °C	18.0 - 700000 cP @Temperature 446 - 518 °F	Average value: 104000 cP Grade Count:4
	18.0 - 700000 cP @Shear Rate 1.00 - 100000 1/s	18.0 - 700000 cP @Shear Rate 1.00 - 100000 1/s	Average value: 104000 cP Grade Count:4
Maximum Moisture Content	0.200 - 0.200 @Temperature 120 - 120 °C	0.200 - 0.200 @Temperature 248 - 248 °F	Average value: 0.200 Grade Count:2
	0.200 - 0.200 @Time 299 - 299 sec	0.200 - 0.200 @Time 0.0830 - 0.0830 hour	Average value: 0.200 Grade Count:2
Linear Mold Shrinkage	0.00200 - 0.0250 cm/cm	0.00200 - 0.0250 in/in	Average value: 0.0123 cm/cm Grade Count:46
	0.0140 - 0.0160 cm/cm @Temperature 260 - 260 °C	0.0140 - 0.0160 in/in @Temperature 500 - 500 °F	Average value: 0.0150 cm/cm Grade Count:2
	0.0140 - 0.0160 cm/cm @Pressure 60.0 - 60.0 MPa	0.0140 - 0.0160 in/in @Pressure 8700 - 8700 psi	Average value: 0.0150 cm/cm Grade Count:2
Linear Mold Shrinkage, Transverse	0.00200 - 0.0250 cm/cm	0.00200 - 0.0250 in/in	Average value: 0.0144 cm/cm Grade Count:18
	0.0140 - 0.0160 cm/cm @Temperature 260 - 260 °C	0.0140 - 0.0160 in/in @Temperature 500 - 500 °F	Average value: 0.0150 cm/cm Grade Count:2
	0.0140 - 0.0160 cm/cm @Pressure 60.0 - 60.0 MPa	0.0140 - 0.0160 in/in @Pressure 8700 - 8700 psi	Average value: 0.0150 cm/cm Grade Count:2
Melt Flow	4.00 - 48.0 g/10 min	4.00 - 48.0 g/10 min	Average value: 23.2 g/10 min Grade Count:20
Ash	18.0 - 30.0 % @Temperature 625 - 625 °C	18.0 - 30.0 % @Temperature 1160 - 1160 °F	Average value: 25.3 % Grade Count:2

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell M	65.0 - 95.0	65.0 - 95.0	Average value: 80.0 Grade Count:4
Hardness, Rockwell R	117 - 120	117 - 120	Average value: 118 Grade Count:11
Ball Indentation Hardness	150 - 200 MPa	21800 - 29000 psi	Average value: 170 MPa Grade Count:6
Tensile Strength, Ultimate	40.7 - 155 MPa	5900 - 22500 psi	Average value: 69.0 MPa Grade Count:55
Tensile Strength, Yield	44.1 - 120 MPa	6400 - 17400 psi	Average value: 55.6 MPa Grade Count:14
Elongation at Break	1.80 - 16.0 %	1.80 - 16.0 %	Average value: 3.83 % Grade Count:65
Elongation at Yield	2.80 - 4.00 %	2.80 - 4.00 %	Average value: 3.15 % Grade Count:4
Modulus of Elasticity	2.75 - 15.2 GPa	399 - 2200 ksi	Average value: 5.52 GPa Grade Count:47
Flexural Yield Strength	77.9 - 245 MPa	11300 - 35500 psi	Average value: 115 MPa Grade Count:41
Flexural Modulus	2.10 - 13.1 GPa	305 - 1900 ksi	Average value: 4.74 GPa Grade Count:41
Compressive Yield Strength	49.6 - 138 MPa	7200 - 20000 psi	Average value: 73.8 MPa Grade Count:8
Izod Impact, Notched	0.267 - 12.0 J/cm	0.500 - 22.5 ft-lb/in	Average value: 0.988 J/cm Grade Count:30
Izod Impact, Unnotched	2.40 - 6.41 J/cm	4.50 - 12.0 ft-lb/in	Average value: 3.89 J/cm Grade Count:18
Izod Impact, Notched (ISO)	3.50 - 13.0 kJ/m²	1.67 - 6.19 ft-lb/in²	Average value: 6.67 kJ/m² Grade Count:9
	3.00 - 12.0 kJ/m² @Temperature -30.0 - -30.0 °C	1.43 - 5.71 ft-lb/in² @Temperature -22.0 - -22.0 °F	Average value: 7.33 kJ/m² Grade Count:6
Izod Impact, Unnotched (ISO)	15.3 - 80.0 kJ/m²	7.28 - 38.1 ft-lb/in²	Average value: 38.7 kJ/m² Grade Count:6
	20.0 - 190 kJ/m² @Temperature -30.0 - -30.0 °C	9.52 - 90.4 ft-lb/in² @Temperature -22.0 - -22.0 °F	Average value: 66.3 kJ/m² Grade Count:4
Charpy Impact Unnotched	2.20 - 8.50 J/cm²	10.5 - 40.5 ft-lb/in²	Average value: 3.95 J/cm² Grade Count:27
	1.90 - 6.50 J/cm² @Temperature -30.0 - -20.0 °C	9.04 - 30.9 ft-lb/in² @Temperature -22.0 - -4.00 °F	Average value: 3.46 J/cm² Grade Count:18
Charpy Impact, Notched	0.170 - 1.30 J/cm²	0.809 - 6.19 ft-lb/in²	Average value: 0.494 J/cm² Grade Count:35
	0.200 - 1.30 J/cm² @Temperature -30.0 - -20.0 °C	0.952 - 6.19 ft-lb/in² @Temperature -22.0 - -4.00 °F	Average value: 0.602 J/cm² Grade Count:16
Tensile Creep Modulus, 1000 hours	1300 - 2700 MPa	189000 - 392000 psi	Average value: 2070 MPa Grade Count:3

Electrical Properties	Metric	English	Comments
Electrical Resistivity	1.00e+6 - 1.00e+18 ohm-cm	1.00e+6 - 1.00e+18 ohm-cm	Average value: 3.09e+16 ohm-cm Grade Count:42
Surface Resistance	3.00 - 1.00e+17 ohm	3.00 - 1.00e+17 ohm	Average value: 9.77e+15 ohm Grade Count:22
Dielectric Constant	2.60 - 4.50	2.60 - 4.50	Average value: 3.79 Grade Count:24
Dielectric Strength	15.0 - 100 kV/mm	381 - 2540 kV/in	Average value: 27.4 kV/mm Grade Count:32
Dissipation Factor	0.00120 - 0.130	0.00120 - 0.130	Average value: 0.0193 Grade Count:16
Arc Resistance	110 - 150 sec	110 - 150 sec	Average value: 133 sec Grade Count:9
Comparative Tracking Index	125 - 500 V	125 - 500 V	Average value: 291 V Grade Count:19

Thermal Properties	Metric	English	Comments
CTE, linear	21.6 - 110 µm/m-°C	12.0 - 61.1 µin/in-°F	Average value: 66.0 µm/m-°C Grade Count:33
	140 - 140 µm/m-°C @Temperature 60.0 - 138 °C	77.8 - 77.8 µin/in-°F @Temperature 140 - 280 °F	Average value: 140 µm/m-°C Grade Count:1
CTE, linear, Transverse to Flow	68.0 - 130 µm/m-°C	37.8 - 72.2 µin/in-°F	Average value: 89.7 µm/m-°C Grade Count:17
	150 - 150 µm/m-°C @Temperature 60.0 - 138 °C	83.3 - 83.3 µin/in-°F @Temperature 140 - 280 °F	Average value: 150 µm/m-°C Grade Count:1
Thermal Conductivity	0.159 - 0.270 W/m-K	1.10 - 1.87 BTU-in/hr-ft²-°F	Average value: 0.207 W/m-K Grade Count:10
Melting Point	200 - 228 °C	392 - 442 °F	Average value: 224 °C Grade Count:31
Maximum Service Temperature, Air	120 - 200 °C	248 - 392 °F	Average value: 151 °C Grade Count:6
Deflection Temperature at 0.46 MPa (66 psi)	80.0 - 220 °C	176 - 428 °F	Average value: 191 °C Grade Count:43
Deflection Temperature at 1.8 MPa (264 psi)	62.8 - 213 °C	145 - 415 °F	Average value: 138 °C Grade Count:61
Vicat Softening Point	180 - 245 °C	356 - 473 °F	Average value: 200 °C Grade Count:13
Flammability, UL94	HB - V-0	HB - V-0	Grade Count:47
Oxygen Index	21.0 - 23.0 %	21.0 - 23.0 %	Average value: 22.3 % Grade Count:3
Glow Wire Test	650 - 750 °C	1200 - 1380 °F	Average value: 717 °C Grade Count:9

Processing Properties	Metric	English	Comments
Processing Temperature	20.0 - 271 °C	68.0 - 520 °F	Average value: 207 °C Grade Count:20
Nozzle Temperature	249 - 277 °C	480 - 530 °F	Average value: 260 °C Grade Count:3
Melt Temperature	220 - 280 °C	428 - 536 °F	Average value: 252 °C Grade Count:27
Mold Temperature	26.7 - 110 °C	80.0 - 230 °F	Average value: 78.2 °C Grade Count:42
Drying Temperature	80.0 - 130 °C	176 - 266 °F	Average value: 115 °C Grade Count:28
Moisture Content	0.000 - 0.100 %	0.000 - 0.100 %	Average value: 0.0453 % Grade Count:15
Injection Pressure	50.0 - 103 MPa	7250 - 15000 psi	Average value: 84.1 MPa Grade Count:16

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.

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