Materials / Compare
Brass C260 vs. DMLS Ti-6Al-4V ELI Titanium
Compare Brass C260 vs. DMLS Ti-6Al-4V ELI 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 | 345MPasourcenominal, strip/flat, 0.5% extension (not 0.2% offset) | 1,100MPasourcetypical, as built, average of horizontal + vertical (M400) |
| Ultimate tensile strength | 427MPasourcenominal, strip/flat | 1,270MPasourcetypical, as built, average of horizontal + vertical (M400) |
| Elongation at break | 23%sourcenominal, in 2.0 in., strip/flat | 8.7%sourcetypical at break, as built (M400) |
| Young's modulus (stiffness) | 110GPasourcetypical, temper-independent | 110GPasourcesame maker and process, sibling grade: EOS Titanium Ti64 (Grade 5) on EOS M 290, as built, XY and Z, typical |
| Density | 8,525kg/m³sourcenominal | 4,400kg/m³sourcetypical part density (ISO 3369), M400 |
| Strength to weight | 40.5kN·m/kg | 250kN·m/kg6.18x higher |
| Stiffness to weight | 12.9MN·m/kg | 25MN·m/kg1.93x higher |
| Poisson's ratio | 0.34sourcereference value at room temperature (Wieland-M30 = CuZn30 = C26000, rolled products) | 0.342sourcewrought TIMETAL 6-4 (TIMET measurement, mean of 10); composition-level, not DMLS-measured |
| Shear modulus | 41.2GPa | 41GPa |
| Bulk modulus | 115GPa | 116GPa |
| Speed of sound | 3,597m/s | 5,000m/s |
| Thermal | ||
| Thermal conductivity | 121W/m·Ksourcetypical, 20 °C | 6.6W/m·Ksourcebase material: wrought Ti-6Al-4V / 6-4 ELI (TIMET datasheet), 20 °C |
| Thermal expansion | 20µm/m·Ksourcetypical, mean 20-300 °C | 9µm/m·Ksourcemean 25-100 °C, ASTM E228; EOS Ti64 Grade 23 (=ELI) on EOS M 290 40 µm; condition not stated (sheet's mechanical data are heat treated) |
| 100 mm part over a 50 °C swing | 100µm growth | 45µm growth2.22x less |
| Specific heat | 377J/kg·Ksourcetypical, 20 °C | 580J/kg·Ksourcebase material: wrought Ti-6Al-4V / 6-4 ELI (TIMET datasheet), 20 °C |
| Heats up and cools (diffusivity) | 37.7mm²/s14.6x faster | 2.59mm²/s |
| Thermal shock resistance | 12,510W/m2.59x more resistant | 4,825W/m |
| Melting point | 916–954°Csourcesolidus-liquidus | 1,630–1,650°Csourcemelting range, wrought TIMETAL 6-4 (composition-level) |
| Values for | C26000 cartridge brass, H02 half hard flat/strip: CDA Electronic Connector Design Guide (mechanical) + CDA alloy page (physical) | EOS Titanium Ti64ELI (powder 9011-0040; ASTM F136/F3001, i.e. Grade 23) on EOS M400 SF, parameter set Ti64ELI_030_FlexM400_100, 30 µm, as built; ISO 6892-1 A14 |
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 Ti-6Al-4V ELI Titanium is 3D printed: its properties depend on build direction and print settings; these are typical values.
Questions
Is Brass C260 stronger than DMLS Ti-6Al-4V ELI Titanium?
DMLS Ti-6Al-4V ELI Titanium is stronger: its yield strength is 1,100 MPa against 345 MPa for Brass C260 (3.19x).
Which is lighter, Brass C260 or DMLS Ti-6Al-4V ELI Titanium?
DMLS Ti-6Al-4V ELI Titanium is lighter: 4,400 kg/m³ against 8,525 kg/m³ for Brass C260.
Which is stiffer, Brass C260 or DMLS Ti-6Al-4V ELI Titanium?
Brass C260 is stiffer: Young's modulus 110 GPa against 110 GPa for DMLS Ti-6Al-4V ELI Titanium, so the same part in Brass C260 deflects less under the same load.
Which is lighter for the same job, Brass C260 or DMLS Ti-6Al-4V ELI Titanium?
For the same stiffness or strength: DMLS Ti-6Al-4V ELI Titanium 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 | Brass C260 | DMLS Ti-6Al-4V ELI Titanium |
|---|---|---|
| Stiff rod or tie (tension) | 1.93x heavier | lighter |
| Stiff beam (bending) | 1.93x heavier | lighter |
| Stiff panel or plate | 1.94x heavier | lighter |
| Strong rod or tie | 6.18x heavier | lighter |
| Strong beam | 4.2x heavier | lighter |
| Strong panel or plate | 3.46x 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, Brass C260 or DMLS Ti-6Al-4V ELI Titanium?
Brass C260 conducts heat better: 121 W/m·K against 6.6 W/m·K for DMLS Ti-6Al-4V ELI Titanium.
Which expands less with temperature?
DMLS Ti-6Al-4V ELI Titanium expands less: 9 µm/m·K against 20 µm/m·K for Brass C260.