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ABS vs. ASTM B685 Alloy

ABS and ASTM B685 alloy belong to fundamentally different material chemistries. ABS is a polymeric material, while ASTM B685 alloy 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 (17, 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 ASTM B685 alloy.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 1.0 to 1.4
11
Elastic (Young's, Tensile) Modulus, GPa 2.0 to 2.6
120
Stiffness to Weight: Axial, points 0.79 to 1.4
6.1
Stiffness to Weight: Bending, points 30 to 44
15
Strength to Weight: Axial, points 10 to 22
17 to 27
Strength to Weight: Bending, points 24 to 37
16 to 21
Tensile Strength: Ultimate (UTS), MPa 37 to 110
660 to 1060
Thermal Expansion, µm/m-K 81 to 95
14
Thermal Shock Resistance, points 11 to 50
28 to 46