ASA vs. Thermoset PI

ASA belongs to the thermoplastics classification, while thermoset PI belongs to the thermoset plastics. There are 11 material properties with values for both materials. Properties with values for just one material (20, in this case) are not shown.

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

Acrylonitrile Styrene Acrylate (ASA)Thermoset Polyimide (PI)

Metric UnitsUS Customary Units

Mechanical Properties

Elongation at Break, %		6.0
Elongation at Break, %		2.0 to 5.9

Tensile Strength: Ultimate (UTS), MPa		55
Tensile Strength: Ultimate (UTS), MPa		37 to 81

Thermal Properties

Glass Transition Temperature, °C		100
Glass Transition Temperature, °C		360

Specific Heat Capacity, J/kg-K		1300
Specific Heat Capacity, J/kg-K		1130

Thermal Conductivity, W/m-K		0.18
Thermal Conductivity, W/m-K		0.29 to 1.7

Thermal Expansion, µm/m-K		95
Thermal Expansion, µm/m-K		38 to 54

Electrical Properties

Electrical Resistivity Order of Magnitude, 10^x Ω-m		13
Electrical Resistivity Order of Magnitude, 10^x Ω-m		15

Otherwise Unclassified Properties

Density, g/cm³		1.1
Density, g/cm³		1.4 to 1.6

Common Calculations

Strength to Weight: Axial, points		14
Strength to Weight: Axial, points		6.5 to 16

Strength to Weight: Bending, points		30
Strength to Weight: Bending, points		16 to 30

Thermal Diffusivity, mm²/s		0.13
Thermal Diffusivity, mm²/s		0.18 to 0.95