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PSU vs. PS

Both PSU and PS are thermoplastics. There are 9 material properties with values for both materials. Properties with values for just one material (21, in this case) are not shown.

For each property being compared, the top bar is PSU and the bottom bar is PS.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 1.2 to 1.6
1.0
Elongation at Break, % 2.0 to 52
1.8 to 40
Flexural Strength, MPa 110 to 200
62 to 80
Impact Strength: Notched Izod, J/m 59 to 100
19 to 45
Specific Heat Capacity, J/kg-K 910 to 1000
1250 to 1400
Strength to Weight: Axial, points 16 to 25
8.5 to 12
Strength to Weight: Bending, points 30 to 40
22 to 26
Tensile Strength: Ultimate (UTS), MPa 70 to 140
32 to 44
Thermal Expansion, µm/m-K 25 to 57
80 to 98