Materials / Compare
FDM ASA vs. Titanium
Compare FDM ASA vs. Titanium 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) | 885MPasourcetypical, plate (>0.187 in), annealed, 0.2% offset |
| Ultimate tensile strength | 37MPasourcetypical | 940MPasourcetypical, plate, annealed |
| Flexural strength | 65MPasourcetypical | not sourced |
| Elongation at break | 9.2%sourcetypical | 16%sourcetypical, in 2 in., plate annealed |
| Young's modulus (stiffness) | 2.45GPasourcetypical | 107–122GPasourcetypical range, 20 °C |
| Density | 1,050kg/m³sourcetypical | 4,430kg/m³sourcenominal |
| Strength to weight | 35.2kN·m/kg | 200kN·m/kg5.67x higher |
| Stiffness to weight | 2.33MN·m/kg | 25.8MN·m/kg11.1x higher |
| Poisson's ratio | not sourced | 0.342sourcemean of TIMET measurements |
| Shear modulus | not sourced | 42.7GPa |
| Bulk modulus | not sourced | 121GPa |
| Speed of sound | 1,528m/s | 5,084m/s |
| Thermal | ||
| Thermal conductivity | 0.17W/m·Ksourcebase material: INEOS Styrolution Luran S 777K injection-molding ASA, typical | 6.6W/m·Ksourcetypical, 20 °C, mill annealed |
| Thermal expansion | 80–110µm/m·Ksourcebase material: INEOS Styrolution Luran S 777K injection-molding ASA, range | 9µm/m·Ksourcetypical, mean 0-100 °C |
| 100 mm part over a 50 °C swing | 475µm growth | 45µm growth10.6x less |
| Specific heat | not sourced | 580J/kg·Ksourcetypical, 20 °C |
| Heats up and cools (diffusivity) | not sourced | 2.57mm²/s |
| Thermal shock resistance | not sourced | 3,730W/m |
| Melting point | not sourced | 1,630–1,650°Csourcemelting range |
| Max service temperature | 92°CsourceHDT 1.8 MPa | 400°Csourceupper recommended use temperature |
| 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. | TIMETAL 6-4 (Ti-6Al-4V Grade 5) annealed plate typical (TIMET properties manual) + TIMET datasheet TMC-0150 physical properties |
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 is 3D printed: its properties depend on build direction and print settings; these are typical values.
Questions
Is FDM ASA stronger than Titanium?
Titanium is stronger: its yield strength is 885 MPa against tensile strength 37 MPa for FDM ASA (23.9x).
Which is lighter, FDM ASA or Titanium?
FDM ASA is lighter: 1,050 kg/m³ against 4,430 kg/m³ for Titanium.
Which is stiffer, FDM ASA or Titanium?
Titanium is stiffer: Young's modulus 115 GPa against 2.45 GPa for FDM ASA, so the same part in Titanium deflects less under the same load.
Which is lighter for the same job, FDM ASA or Titanium?
For the same stiffness or strength: FDM ASA is lighter for a stiff panel or plate; Titanium is lighter for a stiff rod or tie (tension), stiff beam (bending), strong rod or tie, strong beam, strong panel or plate.
| Part that must be | FDM ASA | Titanium |
|---|---|---|
| Stiff rod or tie (tension) | 11.1x heavier | lighter |
| Stiff beam (bending) | 1.62x heavier | lighter |
| Stiff panel or plate | lighter | 17% heavier |
| Strong rod or tie | 5.67x heavier | lighter |
| Strong beam | 1.97x heavier | lighter |
| Strong panel or plate | 16% 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, FDM ASA or Titanium?
Titanium conducts heat better: 6.6 W/m·K against 0.17 W/m·K for FDM ASA.
Which expands less with temperature?
Titanium expands less: 9 µm/m·K against 95 µm/m·K for FDM ASA.