Materials / Compare
Plastic ABS vs. Plastic PPS GF40
Compare Plastic ABS vs. Plastic PPS GF40 strength, stiffness, weight and thermal properties.
| Try it on a partA bracket to run stress or thermal on, free in your browser | Open in LessCAD | Open in LessCAD |
|---|---|---|
| Mechanical | ||
| Yield strength | 38.1MPasourcetypical | not given (tensile used) |
| Ultimate tensile strength | 38.1MPasourcetypical, peak stress (= stress at yield) | 195MPasourcetensile strength, 5 mm/min |
| Flexural strength | 61.1MPasourcetypical | 285MPasourceflexural strength at break |
| Elongation at break | 4.6%sourcetypical | 1.9%sourcestrain at break, 5 mm/min |
| Young's modulus (stiffness) | 1.96GPasourcetypical | 14.7GPasourcetypical, 1 mm/min |
| Density | 1,100kg/m³sourcetypical1.5x lighter | 1,650kg/m³sourcetypical |
| Strength to weight | 34.6kN·m/kg | 118kN·m/kg3.41x higher |
| Stiffness to weight | 1.78MN·m/kg | 8.91MN·m/kg4.99x higher |
| Poisson's ratio | 0.39sourcebase material: ABS family typical (Covestro Part and Mold Design guide, Table 3-1) | 0.35sourceglass-reinforced Fortron PPS (class value, not grade-specific) |
| Shear modulus | 0.706GPa | 5.44GPa7.71x stiffer in shear |
| Bulk modulus | 2.97GPa | 16.3GPa |
| Speed of sound | 1,336m/s | 2,985m/s |
| Thermal | ||
| Thermal conductivity | 0.17W/m·Ksourcebase material: INEOS Styrolution Terluran GP-22 injection-molding ABS, typical | 0.2W/m·Ksource40% glass-reinforced Fortron, 25 °C (not grade-specific) |
| Thermal expansion | 80–110µm/m·Ksourcebase material: INEOS Styrolution Terluran GP-22 injection-molding ABS, range | 12µm/m·Ksourceparallel (flow), mean -50 to 90 °C |
| 100 mm part over a 50 °C swing | 475µm growth | 60µm growth7.92x less |
| Specific heat | not sourced | not sourced |
| Heats up and cools (diffusivity) | not sourced | not sourced |
| Thermal shock resistance | 21.2W/m | 144W/m6.78x more resistant |
| Melting point | not sourced | 280°CsourceDSC, 10 °C/min |
| Glass transition | 101°Csourcetypical | 90°CsourceDSC, 10 °C/min |
| Max service temperature | 86.6°CsourceHDT 0.455 MPa (printed specimens) | 270°CsourceHDT 1.8 MPa |
| Values for | Ultimaker ABS, 3D-printed specimens, XY (flat); Ultimaker S5 Pro, engineering intent profile, 0.15 mm layer height, AA 0.4 print core, 100% infill, Cura 4.9, printed one-at-a-time, conditioned >=24 h at room temperature. TDS v5.00, April 20, 2022. | Celanese Fortron 1140L4 (PPS, 40% glass fibre), injection moulding; FORTRON PPS Short-Term Properties Guide (PPS-012, 2016); thermal conductivity and Poisson for 40% glass-reinforced Fortron from the Fortron PPS Design Manual (PPS-050, 2013). |
Every value links to the document that states it. "Not sourced" means no citable source states it (or only a specification minimum); figures computed from it are left out too.
Plastic ABS is 3D printed: its properties depend on build direction and print settings; these are typical values.
Questions
Is Plastic ABS stronger than Plastic PPS GF40?
Plastic PPS GF40 is stronger: its tensile strength is 195 MPa against yield strength 38.1 MPa for Plastic ABS (5.12x).
Which is lighter, Plastic ABS or Plastic PPS GF40?
Plastic ABS is lighter: 1,100 kg/m³ against 1,650 kg/m³ for Plastic PPS GF40.
Which is stiffer, Plastic ABS or Plastic PPS GF40?
Plastic PPS GF40 is stiffer: Young's modulus 14.7 GPa against 1.96 GPa for Plastic ABS, so the same part in Plastic PPS GF40 deflects less under the same load.
Which is lighter for the same job, Plastic ABS or Plastic PPS GF40?
For the same stiffness or strength: Plastic PPS GF40 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 | Plastic ABS | Plastic PPS GF40 |
|---|---|---|
| Stiff rod or tie (tension) | 4.99x heavier | lighter |
| Stiff beam (bending) | 1.82x heavier | lighter |
| Stiff panel or plate | 30% heavier | lighter |
| Strong rod or tie | 3.41x heavier | lighter |
| Strong beam | 1.98x heavier | lighter |
| Strong panel or plate | 1.51x heavier | lighter |
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 conducts heat better, Plastic ABS or Plastic PPS GF40?
Plastic PPS GF40 conducts heat better: 0.2 W/m·K against 0.17 W/m·K for Plastic ABS.
Which expands less with temperature?
Plastic PPS GF40 expands less: 12 µm/m·K against 95 µm/m·K for Plastic ABS.