Thermal conductivity against densityHigher and further left: spreads more heat for its weightThermal expansion against thermal conductivityLower and further right: warps less when heated
Try it on a partA bracket to run stress or thermal on, free in your browser
Engineering Polymers Part and Mold Design: Thermoplastics, A Design GuideCovestroarchived copyPlastic ABS · Poisson's ratio: base material: ABS family typical (Covestro Part and Mold Design guide, Table 3-1)
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Luran S 777K (ASA) Product Data SheetINEOS StyrolutionFDM ASA · Thermal conductivity: base material: INEOS Styrolution Luran S 777K injection-molding ASA, typicalFDM ASA · Thermal expansion: base material: INEOS Styrolution Luran S 777K injection-molding ASA, range
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Terluran GP-22 (ABS) Product Data SheetINEOS StyrolutionPlastic ABS · Thermal conductivity: base material: INEOS Styrolution Terluran GP-22 injection-molding ABS, typicalPlastic ABS · Thermal expansion: base material: INEOS Styrolution Terluran GP-22 injection-molding ABS, range
Each number points to the document that states it, with the exact basis. Values without a number are computed from the sourced ones. "Not sourced" means no citable source states it (or only a specification minimum); figures computed from it are left out too.
FDM ASA and Plastic ABS are 3D printed: their properties depend on build direction and print settings; these are typical values.
Questions
Mechanical
Is FDM ASA stronger than Plastic ABS?
Plastic ABS is stronger: its yield strength is 38.1 MPa against tensile strength 37 MPa for FDM ASA (3%).
Which is lighter, FDM ASA or Plastic ABS?
FDM ASA is lighter: 1,050 kg/m³ against 1,100 kg/m³ for Plastic ABS.
Which is stiffer, FDM ASA or Plastic ABS?
FDM ASA is stiffer: Young's modulus 2.45 GPa against 1.96 GPa for Plastic ABS, so the same part in FDM ASA deflects less under the same load.
Which is lighter for the same job, FDM ASA or Plastic ABS?
For the same stiffness or strength: FDM ASA is lighter for a stiff rod or tie (tension), stiff beam (bending), stiff panel or plate, strong rod or tie, strong beam, strong panel or plate.
Part that must be
FDM ASA
Plastic ABS
Stiff rod or tie (tension)
lighter
31% heavier
Stiff beam (bending)
lighter
17% heavier
Stiff panel or plate
lighter
13% heavier
Strong rod or tie
lighter
2% heavier
Strong beam
lighter
3% heavier
Strong panel or plate
lighter
3% heavier
For the same stiffness or strength, mass scales with density over stiffness (or strength) raised to a power set by how the part is loaded: 1 for a rod in tension, 1/2 for a beam in bending, 1/3 for a panel (the standard material-selection indices).
Which is more ductile, FDM ASA or Plastic ABS?
FDM ASA stretches further before it breaks: 9.2% elongation at break against 4.6% for Plastic ABS.
Thermal
Which conducts heat better, FDM ASA or Plastic ABS?
FDM ASA conducts heat better: 0.17 W/m·K against 0.17 W/m·K for Plastic ABS.
Which expands less with temperature?
FDM ASA expands less: 95 µm/m·K against 95 µm/m·K for Plastic ABS.