Materials / Compare
FDM ASA vs. DMLS 316L Stainless Steel
Compare FDM ASA vs. DMLS 316L Stainless Steel 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 | not given (tensile used) | 530MPasourcetypical, as manufactured, horizontal |
| Ultimate tensile strength | 37MPasourcetypical | 640MPasourcetypical, as manufactured, horizontal |
| Flexural strength | 65MPasourcetypical | not sourced |
| Elongation at break | 9.2%sourcetypical | 40%sourcetypical at break, as manufactured, horizontal |
| Young's modulus (stiffness) | 2.45GPasourcetypical | 185GPasourcetypical, as built, horizontal (XY); EOSINT M280-400W / M290-400W, 316L_Surface 1.0, 20 µm (2014 sheet) |
| Density | 1,050kg/m³sourcetypical | 7,900kg/m³sourcepart density (ISO 3369, not labelled min or typical), EOS M 290, 40 µm FlexLine |
| Strength to weight | 35.2kN·m/kg | 67.1kN·m/kg1.9x higher |
| Stiffness to weight | 2.33MN·m/kg | 23.4MN·m/kg10x higher |
| Poisson's ratio | not sourced | 0.3sourcebase material: austenitic stainless steels incl. 1.4404 (316L), design value |
| Shear modulus | not sourced | 71.2GPa |
| Bulk modulus | not sourced | 154GPa |
| Speed of sound | 1,528m/s | 4,839m/s |
| Thermal | ||
| Thermal conductivity | 0.17W/m·Ksourcebase material: INEOS Styrolution Luran S 777K injection-molding ASA, typical | 16.2W/m·Ksourcebase material: wrought 316/316L (Cleveland-Cliffs), at 100 °C |
| Thermal expansion | 80–110µm/m·Ksourcebase material: INEOS Styrolution Luran S 777K injection-molding ASA, range | 15.7µm/m·Ksourcemean 25-100 °C, ASTM E228 |
| 100 mm part over a 50 °C swing | 475µm growth | 78.6µm growth6.04x less |
| Specific heat | not sourced | 500J/kg·Ksourcebase material: wrought 316/316L (Cleveland-Cliffs), 0-100 °C |
| Heats up and cools (diffusivity) | not sourced | 4.1mm²/s |
| Thermal shock resistance | not sourced | 2,067W/m |
| Max service temperature | 92°CsourceHDT 1.8 MPa | not sourced |
| Values for | Bambu Lab ASA, TDS V3.0, printed specimens X-Y; nozzle 260 °C, bed 80 °C, 200 mm/s, 100% infill; annealed and dried 80 °C for 12 h before testing. | EOS StainlessSteel 316L (powder 9011-0032), EOS M 290, ParameterSet 316L 20µm Surface M290/400W, as manufactured, horizontal; ISO 6892-1 |
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.
FDM ASA and DMLS 316L Stainless Steel are 3D printed: their properties depend on build direction and print settings; these are typical values.
Questions
Is FDM ASA stronger than DMLS 316L Stainless Steel?
DMLS 316L Stainless Steel is stronger: its yield strength is 530 MPa against tensile strength 37 MPa for FDM ASA (14.3x).
Which is lighter, FDM ASA or DMLS 316L Stainless Steel?
FDM ASA is lighter: 1,050 kg/m³ against 7,900 kg/m³ for DMLS 316L Stainless Steel.
Which is stiffer, FDM ASA or DMLS 316L Stainless Steel?
DMLS 316L Stainless Steel is stiffer: Young's modulus 185 GPa against 2.45 GPa for FDM ASA, so the same part in DMLS 316L Stainless Steel deflects less under the same load.
Which is lighter for the same job, FDM ASA or DMLS 316L Stainless Steel?
For the same stiffness or strength: FDM ASA is lighter for a stiff panel or plate, strong beam, strong panel or plate; DMLS 316L Stainless Steel is lighter for a stiff rod or tie (tension), stiff beam (bending), strong rod or tie.
| Part that must be | FDM ASA | DMLS 316L Stainless Steel |
|---|---|---|
| Stiff rod or tie (tension) | 10x heavier | lighter |
| Stiff beam (bending) | 15% heavier | lighter |
| Stiff panel or plate | lighter | 1.78x heavier |
| Strong rod or tie | 1.9x heavier | lighter |
| Strong beam | lighter | 28% heavier |
| Strong panel or plate | lighter | 1.99x 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, FDM ASA or DMLS 316L Stainless Steel?
DMLS 316L Stainless Steel conducts heat better: 16.2 W/m·K against 0.17 W/m·K for FDM ASA.
Which expands less with temperature?
DMLS 316L Stainless Steel expands less: 15.7 µm/m·K against 95 µm/m·K for FDM ASA.