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PPS vs. PPO

Both PPS and PPO are thermoplastics. There are 11 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is PPS and the bottom bar is PPO.

Metric UnitsUS Customary Units

Mechanical Properties

Elongation at Break, % 2.5 to 11
3.5 to 28
Flexural Modulus, GPa 13 to 17
2.5 to 8.6
Flexural Strength, MPa 120 to 190
92 to 140
Impact Strength: Notched Izod, J/m 21 to 80
80 to 270
Tensile Strength: Ultimate (UTS), MPa 75 to 190
63 to 140

Thermal Properties

Heat Deflection Temperature At 1.82 MPa (264 psi), °C 130 to 260
120 to 140
Specific Heat Capacity, J/kg-K 910 to 1000
1020 to 1250
Thermal Expansion, µm/m-K 20 to 45
25 to 60

Otherwise Unclassified Properties

Density, g/cm3 1.3 to 1.7
1.1 to 1.4

Common Calculations

Strength to Weight: Axial, points 16 to 37
16 to 27
Strength to Weight: Bending, points 30 to 52
33 to 42