Materials / Compare
DMLS 316L Stainless Steel vs. Solder SAC305
Compare DMLS 316L Stainless Steel 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 | 530MPasourcetypical, as manufactured, horizontal | 22MPasourcetypical |
| Ultimate tensile strength | 640MPasourcetypical, as manufactured, horizontal | 39.6MPasourcetypical |
| Elongation at break | 40%sourcetypical at break, as manufactured, horizontal | 49%sourcetypical |
| Young's modulus (stiffness) | 185GPasourcetypical, as built, horizontal (XY); EOSINT M280-400W / M290-400W, 316L_Surface 1.0, 20 µm (2014 sheet) | 6.9GPasourcetypical, temperature and strain rate not stated |
| Density | 7,900kg/m³sourcepart density (ISO 3369, not labelled min or typical), EOS M 290, 40 µm FlexLine | 7,350kg/m³sourcetypical |
| Strength to weight | 67.1kN·m/kg22.4x higher | 2.99kN·m/kg |
| Stiffness to weight | 23.4MN·m/kg24.9x higher | 0.939MN·m/kg |
| Poisson's ratio | 0.3sourcebase material: austenitic stainless steels incl. 1.4404 (316L), design value | 0.35sourcetypical |
| Shear modulus | 71.2GPa27.8x stiffer in shear | 2.56GPa |
| Bulk modulus | 154GPa | 7.67GPa |
| Speed of sound | 4,839m/s | 969m/s |
| Thermal | ||
| Thermal conductivity | 16.2W/m·Ksourcebase material: wrought 316/316L (Cleveland-Cliffs), at 100 °C | 61W/m·Ksourcetypical, temperature not stated |
| Thermal expansion | 15.7µm/m·Ksourcemean 25-100 °C, ASTM E228 | 21.9µm/m·Ksourcemean, 20-100 °C (MacDermid Alpha) |
| 100 mm part over a 50 °C swing | 78.6µm growth39% less | 110µm growth |
| Specific heat | 500J/kg·Ksourcebase material: wrought 316/316L (Cleveland-Cliffs), 0-100 °C | 232J/kg·Ksourcetypical (MacDermid Alpha) |
| Heats up and cools (diffusivity) | 4.1mm²/s | 35.8mm²/s8.72x faster |
| Thermal shock resistance | 2,067W/m | 5,773W/m2.79x more resistant |
| Melting point | not sourced | 217–220°Csourcesolidus-liquidus |
| Values for | EOS StainlessSteel 316L (powder 9011-0032), EOS M 290, ParameterSet 316L 20µm Surface M290/400W, as manufactured, horizontal; ISO 6892-1 | 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.
DMLS 316L Stainless Steel is 3D printed: its properties depend on build direction and print settings; these are typical values.
Questions
Is DMLS 316L Stainless Steel stronger than Solder SAC305?
DMLS 316L Stainless Steel is stronger: its yield strength is 530 MPa against 22 MPa for Solder SAC305 (24.1x).
Which is lighter, DMLS 316L Stainless Steel or Solder SAC305?
Solder SAC305 is lighter: 7,350 kg/m³ against 7,900 kg/m³ for DMLS 316L Stainless Steel.
Which is stiffer, DMLS 316L Stainless Steel or Solder SAC305?
DMLS 316L Stainless Steel is stiffer: Young's modulus 185 GPa against 6.9 GPa for Solder SAC305, so the same part in DMLS 316L Stainless Steel deflects less under the same load.
Which is lighter for the same job, DMLS 316L Stainless Steel or Solder SAC305?
For the same stiffness or strength: DMLS 316L Stainless Steel 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 | DMLS 316L Stainless Steel | Solder SAC305 |
|---|---|---|
| Stiff rod or tie (tension) | lighter | 24.9x heavier |
| Stiff beam (bending) | lighter | 4.82x heavier |
| Stiff panel or plate | lighter | 2.78x heavier |
| Strong rod or tie | lighter | 22.4x heavier |
| Strong beam | lighter | 7.76x heavier |
| Strong panel or plate | lighter | 4.57x 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 conducts heat better, DMLS 316L Stainless Steel or Solder SAC305?
Solder SAC305 conducts heat better: 61 W/m·K against 16.2 W/m·K for DMLS 316L Stainless Steel.
Which expands less with temperature?
DMLS 316L Stainless Steel expands less: 15.7 µm/m·K against 21.9 µm/m·K for Solder SAC305.