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PC vs. PBT

Both PC and PBT are thermoplastics. There are 10 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is PC and the bottom bar is PBT.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 1.2 to 1.4
1.3 to 1.5
Elongation at Break, % 3.5 to 110
2.5 to 43
Flexural Modulus, GPa 2.3 to 10
2.6 to 9.1
Flexural Strength, MPa 92 to 160
79 to 210
Glass Transition Temperature, °C 150
40
Heat Deflection Temperature At 1.82 MPa (264 psi), °C 130 to 150
4.0
Specific Heat Capacity, J/kg-K 1000 to 1200
1040 to 1200
Strength to Weight: Axial, points 15 to 30
12 to 25
Strength to Weight: Bending, points 30 to 45
25 to 38
Tensile Strength: Ultimate (UTS), MPa 66 to 160
58 to 140