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POM-C vs. PS

Both POM-C and PS are thermoplastics. There are 12 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is POM-C and the bottom bar is PS.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 2.8 to 9.7
1.9 to 2.9
Elongation at Break, % 3.0 to 65
1.8 to 40
Flexural Strength, MPa 83 to 170
62 to 80
Impact Strength: Notched Izod, J/m 68 to 69
19 to 45
Tensile Strength: Ultimate (UTS), MPa 61 to 110
32 to 44

Thermal Properties

Specific Heat Capacity, J/kg-K 1130 to 1370
1250 to 1400

Otherwise Unclassified Properties

Density, g/cm3 1.4 to 1.6
1.0
Limiting Oxygen Index (LOI), % 15
18

Common Calculations

Stiffness to Weight: Axial, points 1.1 to 3.3
1.0 to 1.5
Stiffness to Weight: Bending, points 33 to 44
40 to 45
Strength to Weight: Axial, points 12 to 19
8.5 to 12
Strength to Weight: Bending, points 24 to 32
22 to 26