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PPA vs. ASA

Both PPA and ASA are thermoplastics. There are 12 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is PPA and the bottom bar is ASA.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 2.1 to 2.2
2.6
Elongation at Break, % 30
6.0
Tensile Strength: Ultimate (UTS), MPa 57 to 69
55

Thermal Properties

Glass Transition Temperature, °C 92 to 130
100
Specific Heat Capacity, J/kg-K 1400
1300
Thermal Conductivity, W/m-K 0.15
0.18

Otherwise Unclassified Properties

Density, g/cm3 1.1
1.1

Common Calculations

Stiffness to Weight: Axial, points 1.0 to 1.1
1.3
Stiffness to Weight: Bending, points 38
43
Strength to Weight: Axial, points 14 to 17
14
Strength to Weight: Bending, points 29 to 33
30
Thermal Diffusivity, mm2/s 0.095
0.13