Materials / Compare
DMLS 316L Stainless Steel vs. FDM HIPS
Compare DMLS 316L Stainless Steel vs. FDM HIPS 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 | not given (tensile used) |
| Ultimate tensile strength | 640MPasourcetypical, as manufactured, horizontal | 18.4MPasourcetypical |
| Flexural strength | not sourced | 31.8MPasourcetypical |
| Elongation at break | 40%sourcetypical at break, as manufactured, horizontal | 1.4%sourcetypical |
| Young's modulus (stiffness) | 185GPasourcetypical, as built, horizontal (XY); EOSINT M280-400W / M290-400W, 316L_Surface 1.0, 20 µm (2014 sheet) | 1.59GPasourcetypical |
| Density | 7,900kg/m³sourcepart density (ISO 3369, not labelled min or typical), EOS M 290, 40 µm FlexLine | 1,023kg/m³sourcetypical |
| Strength to weight | 67.1kN·m/kg3.73x higher | 18kN·m/kg |
| Stiffness to weight | 23.4MN·m/kg15.1x higher | 1.55MN·m/kg |
| Poisson's ratio | 0.3sourcebase material: austenitic stainless steels incl. 1.4404 (316L), design value | not sourced |
| Shear modulus | 71.2GPa | not sourced |
| Bulk modulus | 154GPa | not sourced |
| Speed of sound | 4,839m/s | 1,246m/s |
| Thermal | ||
| Thermal conductivity | 16.2W/m·Ksourcebase material: wrought 316/316L (Cleveland-Cliffs), at 100 °C | 0.17W/m·Ksourcebase material: INEOS Styrolution PS 486N injection-molding HIPS, typical |
| Thermal expansion | 15.7µm/m·Ksourcemean 25-100 °C, ASTM E228 | 80µm/m·Ksourcebase material: INEOS Styrolution PS 486N injection-molding HIPS, typical |
| 100 mm part over a 50 °C swing | 78.6µm growth5.09x less | 400µm growth |
| Specific heat | 500J/kg·Ksourcebase material: wrought 316/316L (Cleveland-Cliffs), 0-100 °C | not sourced |
| Heats up and cools (diffusivity) | 4.1mm²/s | not sourced |
| Thermal shock resistance | 2,067W/m | not sourced |
| Glass transition | not sourced | 99°Csourcetypical |
| Max service temperature | not sourced | 86°CsourceHDT 1.8 MPa |
| Values for | EOS StainlessSteel 316L (powder 9011-0032), EOS M 290, ParameterSet 316L 20µm Surface M290/400W, as manufactured, horizontal; ISO 6892-1 | BASF Forward AM (BASF 3D Printing Solutions) Ultrafuse HiPS, TDS v2.2 (13.11.2019), printed specimens, XY 'Flat'. Specimen print settings are not stated; recommended processing on the sheet: nozzle 240-260 °C, bed 100-120 °C, 40-80 mm/s. Product is discontinued (Forward AM product page) but the TDS is still served by Forward AM. |
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 and FDM HIPS are 3D printed: their properties depend on build direction and print settings; these are typical values.
Questions
Is DMLS 316L Stainless Steel stronger than FDM HIPS?
DMLS 316L Stainless Steel is stronger: its yield strength is 530 MPa against tensile strength 18.4 MPa for FDM HIPS (28.8x).
Which is lighter, DMLS 316L Stainless Steel or FDM HIPS?
FDM HIPS is lighter: 1,023 kg/m³ against 7,900 kg/m³ for DMLS 316L Stainless Steel.
Which is stiffer, DMLS 316L Stainless Steel or FDM HIPS?
DMLS 316L Stainless Steel is stiffer: Young's modulus 185 GPa against 1.59 GPa for FDM HIPS, 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 FDM HIPS?
For the same stiffness or strength: DMLS 316L Stainless Steel is lighter for a stiff rod or tie (tension), stiff beam (bending), strong rod or tie, strong beam; FDM HIPS is lighter for a stiff panel or plate, strong panel or plate.
| Part that must be | DMLS 316L Stainless Steel | FDM HIPS |
|---|---|---|
| Stiff rod or tie (tension) | lighter | 15.1x heavier |
| Stiff beam (bending) | lighter | 40% heavier |
| Stiff panel or plate | 1.58x heavier | lighter |
| Strong rod or tie | lighter | 3.73x heavier |
| Strong beam | lighter | 22% heavier |
| Strong panel or plate | 44% 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, DMLS 316L Stainless Steel or FDM HIPS?
DMLS 316L Stainless Steel conducts heat better: 16.2 W/m·K against 0.17 W/m·K for FDM HIPS.
Which expands less with temperature?
DMLS 316L Stainless Steel expands less: 15.7 µm/m·K against 80 µm/m·K for FDM HIPS.