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PSU vs. PC

Both PSU and PC are thermoplastics. There are 13 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elongation at Break, % 2.0 to 52
3.5 to 110
Flexural Modulus, GPa 2.7 to 14
2.3 to 10
Flexural Strength, MPa 110 to 200
92 to 160
Impact Strength: Notched Izod, J/m 59 to 100
140 to 440
Rockwell M Hardness 69 to 95
68 to 120
Tensile Strength: Ultimate (UTS), MPa 70 to 140
66 to 160

Thermal Properties

Heat Deflection Temperature At 1.82 MPa (264 psi), °C 180 to 200
130 to 150
Specific Heat Capacity, J/kg-K 910 to 1000
1000 to 1200
Thermal Expansion, µm/m-K 25 to 57
10 to 69

Otherwise Unclassified Properties

Density, g/cm3 1.2 to 1.6
1.2 to 1.4
Water Absorption At Saturation, % 0.4 to 0.6
0.16 to 0.19

Common Calculations

Strength to Weight: Axial, points 16 to 25
15 to 30
Strength to Weight: Bending, points 30 to 40
30 to 45