Overview of materials for PET + PBT Unreinforced

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Overview of materials for PET + PBT Unreinforced
Categories:	Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT); PET + PBT Unreinforced; Polyethylene Terephthalate (PET)
Material Notes:	This property data is a summary of similar materials in the MatWeb database for the category "PET + PBT Unreinforced". 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	1.32 - 1.48 g/cc	Average value: 1.43 g/cc Grade Count:5
Water Absorption	0.0500 %	Average value: 0.0500 % Grade Count:3
Linear Mold Shrinkage	0.00400 - 0.0150 cm/cm	Average value: 0.0101 cm/cm Grade Count:4
Linear Mold Shrinkage, Transverse	0.0120 - 0.0130 cm/cm	Average value: 0.0123 cm/cm Grade Count:3

Mechanical Properties	Original Value	Comments
Hardness, Rockwell M	90.0 - 95.0	Average value: 91.7 Grade Count:3
Tensile Strength, Ultimate	45.0 - 84.0 MPa	Average value: 57.3 MPa Grade Count:4
Elongation at Break	3.00 - 3.70 %	Average value: 3.30 % Grade Count:3
Flexural Yield Strength	70.0 - 123 MPa	Average value: 89.4 MPa Grade Count:5
Flexural Modulus	3.40 - 5.20 GPa	Average value: 4.22 GPa Grade Count:4
Compressive Yield Strength	54.0 - 93.0 MPa	Average value: 68.7 MPa Grade Count:3
Izod Impact, Notched	0.700 - 1.10 J/cm	Average value: 0.833 J/cm Grade Count:3
Izod Impact, Notched (ISO)	3.50 - 3.50 kJ/m² @Temperature -30.0 - -30.0 °C	Average value: 3.50 kJ/m² Grade Count:1
Charpy Impact, Notched	0.350 - 0.350 J/cm² @Temperature -30.0 - -30.0 °C	Average value: 0.350 J/cm² Grade Count:2
Taber Abrasion, mg/1000 Cycles	15.0 - 28.0	Average value: 20.3 Grade Count:3

Electrical Properties	Original Value	Comments
Electrical Resistivity	1.00e+15 - 1.00e+16 ohm-cm	Average value: 8.20e+15 ohm-cm Grade Count:5
Dielectric Strength	24.0 - 25.0 kV/mm	Average value: 24.3 kV/mm Grade Count:3
Arc Resistance	80.0 - 130 sec	Average value: 112 sec Grade Count:3
Comparative Tracking Index	210 - 255 V	Average value: 238 V Grade Count:3

Thermal Properties	Original Value	Comments
Melting Point	223 - 255 °C	Average value: 251 °C Grade Count:4
Deflection Temperature at 0.46 MPa (66 psi)	120 - 220 °C	Average value: 186 °C Grade Count:5
Deflection Temperature at 1.8 MPa (264 psi)	90.0 - 195 °C	Average value: 130 °C Grade Count:4
Flammability, UL94	HB - V-0	Grade Count:4

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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O3290a / 89084

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