Overview of materials for Polybutylene Terephthalate (PBT), Unreinforced, Molded

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Overview of materials for Polybutylene Terephthalate (PBT), Unreinforced, Molded
Categories:	Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT); Polybutylene Terephthalate (PBT), Unreinforced, Molded
Material Notes:	This property data is a summary of similar materials in the MatWeb database for the category "Polybutylene Terephthalate (PBT), Unreinforced, Molded". 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	Original Value	Comments

Density	0.900 - 1.92 g/cc	Average value: 1.38 g/cc Grade Count:400
Filler Content	17.0 - 25.0 %	Average value: 19.7 % Grade Count:3
Water Absorption	0.000 - 0.600 %	Average value: 0.187 % Grade Count:136
Moisture Absorption at Equilibrium	0.0100 - 0.500 %	Average value: 0.0970 % Grade Count:171
Water Absorption at Saturation	0.0900 - 0.500 %	Average value: 0.380 % Grade Count:64
Viscosity	1.60 - 600000 cP	Average value: 201000 cP Grade Count:7
	7.00 - 87.0 cP @Temperature 250 - 285 °C	Average value: 36800 cP Grade Count:35
	7.00 - 87.0 cP @Load 1.20 - 5.00 kg	Average value: 36800 cP Grade Count:35
	8000 - 800000 cP @Shear Rate 1.00 - 100000 1/s	Average value: 36800 cP Grade Count:2
	8000 - 800000 cP @Temperature 230 - 270 °C	Average value: 36800 cP Grade Count:2
Viscosity Test	66.5 - 160 cm³/g	Average value: 111 cm³/g Grade Count:20
Viscosity Number	0.600 - 180 cm³/g	Average value: 113 cm³/g Grade Count:17
Maximum Moisture Content	0.0200	Average value: 0.0200 Grade Count:25
	0.200 - 0.200 @Temperature 120 - 120 °C	Average value: 0.200 Grade Count:1
	0.200 - 0.200 @Time 299 - 299 sec	Average value: 0.200 Grade Count:1
Linear Mold Shrinkage	0.00100 - 0.0400 cm/cm	Average value: 0.0143 cm/cm Grade Count:313
	0.00400 - 0.0150 cm/cm @Temperature 80.0 - 80.0 °C	Average value: 0.0136 cm/cm Grade Count:3
	0.0180 - 0.0180 cm/cm @Temperature 260 - 260 °C	Average value: 0.0136 cm/cm Grade Count:2
	0.0180 - 0.0180 cm/cm @Pressure 60.0 - 60.0 MPa	Average value: 0.0136 cm/cm Grade Count:2
Linear Mold Shrinkage, Transverse	0.00160 - 0.0400 cm/cm	Average value: 0.0161 cm/cm Grade Count:180
	0.00900 - 0.0170 cm/cm @Temperature 80.0 - 80.0 °C	Average value: 0.0153 cm/cm Grade Count:3
	0.0180 - 0.0180 cm/cm @Temperature 260 - 260 °C	Average value: 0.0153 cm/cm Grade Count:2
	0.0180 - 0.0180 cm/cm @Pressure 60.0 - 60.0 MPa	Average value: 0.0153 cm/cm Grade Count:2
Melt Flow	3.00 - 570 g/10 min	Average value: 38.9 g/10 min Grade Count:191

Mechanical Properties	Original Value	Comments
Hardness, Rockwell M	55.0 - 90.0	Average value: 80.5 Grade Count:50
Hardness, Rockwell R	107 - 120	Average value: 117 Grade Count:25
Hardness, Shore D	40.0 - 87.0	Average value: 74.3 Grade Count:24
Ball Indentation Hardness	50.0 - 160 MPa	Average value: 132 MPa Grade Count:21
Tensile Strength, Ultimate	26.0 - 178 MPa	Average value: 74.3 MPa Grade Count:235
Tensile Strength, Yield	21.0 - 166 MPa	Average value: 65.1 MPa Grade Count:231
	22.0 - 105 MPa @Temperature -40.0 - 100 °C	Average value: 63.5 MPa Grade Count:1
Elongation at Break	0.600 - 300 %	Average value: 42.7 % Grade Count:353
	>= 100 % @Temperature 60.0 - 120 °C	Average value: 100 % Grade Count:2
Elongation at Yield	1.00 - 75.0 %	Average value: 6.94 % Grade Count:179
Modulus of Elasticity	0.420 - 23.4 GPa	Average value: 5.18 GPa Grade Count:252
	0.180 - 0.900 GPa @Temperature 60.0 - 120 °C	Average value: 0.505 GPa Grade Count:2
Flexural Yield Strength	22.0 - 275 MPa	Average value: 112 MPa Grade Count:315
	14.0 - 127 MPa @Temperature 60.0 - 150 °C	Average value: 60.8 MPa Grade Count:3
Flexural Modulus	0.231 - 18.1 GPa	Average value: 4.50 GPa Grade Count:311
	0.500 - 5.80 GPa @Temperature 60.0 - 150 °C	Average value: 2.65 GPa Grade Count:3
Flexural Strain at Break	2.00 - 6.00 %	Average value: 5.06 % Grade Count:18
	4.60 - 7.00 % @Temperature 60.0 - 150 °C	Average value: 5.84 % Grade Count:2
Flexural Strain at Yield	5.00 - 8.90 %	Average value: 7.00 % Grade Count:22
Adhesive Bond Strength	31.0 - 42.0 MPa	Average value: 36.0 MPa Grade Count:10
Izod Impact	5.00 - 186 J	Average value: 74.4 J Grade Count:77
	30.0 - 144 J @Temperature -30.0 - -20.0 °C	Average value: 83.1 J Grade Count:25
Izod Impact, Notched	0.0400 - 8.00 J/cm	Average value: 1.02 J/cm Grade Count:115
	0.300 - 0.300 J/cm @Temperature -20.0 - -20.0 °C	Average value: 2.99 J/cm Grade Count:1
	1.30 - 5.70 J/cm @Temperature -40.0 - -20.0 °C	Average value: 2.99 J/cm Grade Count:5
	1.30 - 5.70 J/cm @Thickness 1.57 - 3.18 mm	Average value: 2.99 J/cm Grade Count:5
Izod Impact, Unnotched	0.374 - 5340 J/cm	Average value: 7.29 J/cm Grade Count:85
	5.25 - 6.00 J/cm @Temperature -30.0 - -30.0 °C	Average value: 5.81 J/cm Grade Count:4
Izod Impact, Notched (ISO)	1.98 - 170 kJ/m²	Average value: 11.4 kJ/m² Grade Count:144
	2.00 - 20.0 kJ/m² @Temperature -40.0 - -20.0 °C	Average value: 9.04 kJ/m² Grade Count:54
Izod Impact, Unnotched (ISO)	4.20 kJ/m² - NB	Average value: 48.8 kJ/m² Grade Count:102
	3.80 kJ/m² - NB @Temperature -40.0 - -30.0 °C	Average value: 88.9 kJ/m² Grade Count:27
Charpy Impact Unnotched	0.294 J/cm² - NB	Average value: 13.2 J/cm² Grade Count:144
	2.50 J/cm² - NB @Temperature -40.0 - -20.0 °C	Average value: 14.2 J/cm² Grade Count:89
Charpy Impact, Notched	0.120 - 1000 J/cm²	Average value: 1.01 J/cm² Grade Count:188
	0.200 - 2.50 J/cm² @Temperature -40.0 - -20.0 °C	Average value: 0.746 J/cm² Grade Count:95
Gardner Impact	0.904 - 40.0 J	Average value: 28.8 J Grade Count:8
Tensile Impact Strength	65.0 - 160 kJ/m²	Average value: 112 kJ/m² Grade Count:3
Dart Drop, Total Energy	2.00 - 140 J	Average value: 21.2 J Grade Count:48
Puncture Energy	15.0 - 16.0 J @Temperature -30.0 - -30.0 °C	Average value: 15.5 J Grade Count:2
Coefficient of Friction	0.130 - 0.660	Average value: 0.346 Grade Count:28
Coefficient of Friction, Static	0.130 - 0.730	Average value: 0.362 Grade Count:25
Tensile Creep Modulus, 1 hour	1500 - 2400 MPa	Average value: 2020 MPa Grade Count:6
Tensile Creep Modulus, 1000 hours	950 - 11000 MPa	Average value: 2000 MPa Grade Count:12
K (wear) Factor	4.03 - 423 x 10^-8 mm³/N-M	Average value: 114 x 10^-8 mm³/N-M Grade Count:24

Electrical Properties	Original Value	Comments
Electrical Resistivity	1000 - 1.20e+17 ohm-cm	Average value: 1.61e+16 ohm-cm Grade Count:176
Surface Resistance	10.0 - 2.00e+17 ohm	Average value: 5.58e+15 ohm Grade Count:136
Dielectric Constant	2.90 - 4.20	Average value: 3.39 Grade Count:147
Dielectric Strength	14.0 - 140 kV/mm	Average value: 23.7 kV/mm Grade Count:144
Dissipation Factor	0.00100 - 0.0330	Average value: 0.0112 Grade Count:135
Arc Resistance	60.0 - 240 sec	Average value: 132 sec Grade Count:48
Comparative Tracking Index	120 - 600 V	Average value: 538 V Grade Count:113
Hot Wire Ignition, HWI	7.00 - 120 sec	Average value: 52.5 sec Grade Count:12
High Amp Arc Ignition, HAI	15.0 - 120 arcs	Average value: 102 arcs Grade Count:12
High Voltage Arc-Tracking Rate, HVTR	0.000 - 25.4 mm/min	Average value: 12.3 mm/min Grade Count:7

Thermal Properties	Original Value	Comments
CTE, linear	12.0 - 170 µm/m-°C	Average value: 76.8 µm/m-°C Grade Count:231
	25.2 - 171 µm/m-°C @Temperature 22.8 - 150 °C	Average value: 139 µm/m-°C Grade Count:18
CTE, linear, Transverse to Flow	36.0 - 150 µm/m-°C	Average value: 96.8 µm/m-°C Grade Count:160
	90.0 - 170 µm/m-°C @Temperature 22.8 - 150 °C	Average value: 151 µm/m-°C Grade Count:14
Specific Heat Capacity	1.50 - 1.97 J/g-°C	Average value: 1.66 J/g-°C Grade Count:7
Thermal Conductivity	0.131 - 0.330 W/m-K	Average value: 0.236 W/m-K Grade Count:13
Melting Point	200 - 271 °C	Average value: 224 °C Grade Count:164
Maximum Service Temperature, Air	90.0 - 200 °C	Average value: 145 °C Grade Count:15
Hot Ball Pressure Test	125 - 200 °C	Average value: 150 °C Grade Count:13
Deflection Temperature at 0.46 MPa (66 psi)	55.0 - 387 °C	Average value: 165 °C Grade Count:284
Deflection Temperature at 1.8 MPa (264 psi)	45.0 - 216 °C	Average value: 100 °C Grade Count:362
Deflection Temperature at 8.0 MPa	45.0 - 48.0 °C	Average value: 45.8 °C Grade Count:4
Vicat Softening Point	65.0 - 221 °C	Average value: 189 °C Grade Count:104
Glass Transition Temp, Tg	60.0 °C	Average value: 60.0 °C Grade Count:15
UL RTI, Electrical	75.0 - 150 °C	Average value: 100 °C Grade Count:45
UL RTI, Mechanical with Impact	75.0 - 140 °C	Average value: 94.3 °C Grade Count:45
UL RTI, Mechanical without Impact	75.0 - 150 °C	Average value: 101 °C Grade Count:45
Flammability, UL94	HB - 5VA	Grade Count:261
Oxygen Index	20.0 - 32.0 %	Average value: 24.3 % Grade Count:24
Glow Wire Test	650 - 960 °C	Average value: 819 °C Grade Count:45

Optical Properties	Original Value	Comments
Transmission, Visible	0.600 - 90.0 %	Average value: 67.7 % Grade Count:4

Processing Properties	Original Value	Comments
Processing Temperature	20.0 - 300 °C	Average value: 192 °C Grade Count:52
Nozzle Temperature	225 - 295 °C	Average value: 251 °C Grade Count:104
Adapter Temperature	225 - 275 °C	Average value: 247 °C Grade Count:3
Die Temperature	215 - 275 °C	Average value: 249 °C Grade Count:4
Melt Temperature	174 - 295 °C	Average value: 251 °C Grade Count:223
Mold Temperature	10.0 - 160 °C	Average value: 78.7 °C Grade Count:242
Drying Temperature	80.0 - 150 °C	Average value: 117 °C Grade Count:199
Moisture Content	0.000 - 0.250 %	Average value: 0.0493 % Grade Count:42
Dew Point	-28.9 °C	Average value: -28.9 °C Grade Count:3
Injection Pressure	3.45 - 120 MPa	Average value: 66.8 MPa Grade Count:37
Vent Depth	0.00127 - 0.00381 cm	Average value: 0.00233 cm Grade Count:16
Precipitation Temperature	40.0 - 270 °C	Average value: 61.3 °C Grade Count:19

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 go back to viewing the property data in MatWeb's normal format.

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