Materials / Compare
Plastic ABS vs. Solder SAC305
Compare Plastic ABS vs. Solder SAC305 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 | 38.1MPasourcetypical1.73x stronger | 22MPasourcetypical |
| Ultimate tensile strength | 38.1MPasourcetypical, peak stress (= stress at yield) | 39.6MPasourcetypical |
| Flexural strength | 61.1MPasourcetypical | not sourced |
| Elongation at break | 4.6%sourcetypical | 49%sourcetypical10.7x more ductile |
| Young's modulus (stiffness) | 1.96GPasourcetypical | 6.9GPasourcetypical, temperature and strain rate not stated |
| Density | 1,100kg/m³sourcetypical6.68x lighter | 7,350kg/m³sourcetypical |
| Strength to weight | 34.6kN·m/kg11.6x higher | 2.99kN·m/kg |
| Stiffness to weight | 1.78MN·m/kg1.9x higher | 0.939MN·m/kg |
| Poisson's ratio | 0.39sourcebase material: ABS family typical (Covestro Part and Mold Design guide, Table 3-1) | 0.35sourcetypical |
| Shear modulus | 0.706GPa | 2.56GPa3.62x stiffer in shear |
| Bulk modulus | 2.97GPa | 7.67GPa |
| Speed of sound | 1,336m/s | 969m/s |
| Thermal | ||
| Thermal conductivity | 0.17W/m·Ksourcebase material: INEOS Styrolution Terluran GP-22 injection-molding ABS, typical | 61W/m·Ksourcetypical, temperature not stated |
| Thermal expansion | 80–110µm/m·Ksourcebase material: INEOS Styrolution Terluran GP-22 injection-molding ABS, range | 21.9µm/m·Ksourcemean, 20-100 °C (MacDermid Alpha) |
| 100 mm part over a 50 °C swing | 475µm growth | 110µm growth4.34x less |
| Specific heat | not sourced | 232J/kg·Ksourcetypical (MacDermid Alpha) |
| Heats up and cools (diffusivity) | not sourced | 35.8mm²/s |
| Thermal shock resistance | 21.2W/m | 5,773W/m272x more resistant |
| Melting point | not sourced | 217–220°Csourcesolidus-liquidus |
| Glass transition | 101°Csourcetypical | not sourced |
| Max service temperature | 86.6°CsourceHDT 0.455 MPa (printed specimens) | not sourced |
| 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. | SAC305 (Sn96.5Ag3.0Cu0.5) solder alloy, bulk; Indium Corporation Indalloy 256 (SAC305) for Preforms product data sheet (Form No. 100346 R0, 2024), selected properties, test temperature not stated; expansion and specific heat from MacDermid Alpha VACULOY SAC TDS (06 September 2023). |
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 Solder SAC305?
Plastic ABS is stronger: its yield strength is 38.1 MPa against 22 MPa for Solder SAC305 (1.73x).
Which is lighter, Plastic ABS or Solder SAC305?
Plastic ABS is lighter: 1,100 kg/m³ against 7,350 kg/m³ for Solder SAC305.
Which is stiffer, Plastic ABS or Solder SAC305?
Solder SAC305 is stiffer: Young's modulus 6.9 GPa against 1.96 GPa for Plastic ABS, so the same part in Solder SAC305 deflects less under the same load.
Which is lighter for the same job, Plastic ABS or Solder SAC305?
For the same stiffness or strength: Plastic ABS 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 | Solder SAC305 |
|---|---|---|
| Stiff rod or tie (tension) | lighter | 1.9x heavier |
| Stiff beam (bending) | lighter | 3.56x heavier |
| Stiff panel or plate | lighter | 4.39x heavier |
| Strong rod or tie | lighter | 11.6x heavier |
| Strong beam | lighter | 9.64x heavier |
| Strong panel or plate | lighter | 8.79x 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, Plastic ABS or Solder SAC305?
Solder SAC305 stretches further before it breaks: 49% elongation at break against 4.6% for Plastic ABS.
Which conducts heat better, Plastic ABS or Solder SAC305?
Solder SAC305 conducts heat better: 61 W/m·K against 0.17 W/m·K for Plastic ABS.
Which expands less with temperature?
Solder SAC305 expands less: 21.9 µm/m·K against 95 µm/m·K for Plastic ABS.