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ABS vs. Austenitic Grey Cast Iron

ABS and austenitic grey cast iron belong to fundamentally different material chemistries. ABS is a polymeric material, while austenitic grey cast iron is a metal. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 9 material properties with values for both materials. Properties with values for just one material (21, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is ABS and the bottom bar is austenitic grey cast iron.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 1.0 to 1.4
7.7 to 8.1
Elastic (Young's, Tensile) Modulus, GPa 2.0 to 2.6
180
Stiffness to Weight: Axial, points 0.79 to 1.4
13
Stiffness to Weight: Bending, points 30 to 44
23 to 25
Strength to Weight: Axial, points 10 to 22
5.3 to 8.2
Strength to Weight: Bending, points 24 to 37
7.9 to 11
Tensile Strength: Ultimate (UTS), MPa 37 to 110
150 to 230
Thermal Expansion, µm/m-K 81 to 95
13 to 14
Thermal Shock Resistance, points 11 to 50
4.5 to 6.5