SLA Resin Elastic 50A vs. DMLS Ti-6Al-4V ELI Titanium

Compare SLA Resin Elastic 50A vs. DMLS Ti-6Al-4V ELI Titanium strength, stiffness, weight and thermal properties.

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SLA Resin Elastic 50A3D printed (SLA resin)

DMLS Ti-6Al-4V ELI Titanium3D printed metal (DMLS)

Mechanical
Try it on a partA bracket to run stress or thermal on, free in your browser	Open in LessCAD	Open in LessCAD
Yield strength	not given (tensile used)	1,100MPasourcetypical, as built, average of horizontal + vertical (M400)
Ultimate tensile strength	3.4MPasourcetypical	1,270MPasourcetypical, as built, average of horizontal + vertical (M400)
Elongation at break	160%sourcetypical	8.7%sourcetypical at break, as built (M400)
Young's modulus (stiffness)	not sourced	110GPasourcesame maker and process, sibling grade: EOS Titanium Ti64 (Grade 5) on EOS M 290, as built, XY and Z, typical
Density	1,010kg/m³sourcetypical	4,400kg/m³sourcetypical part density (ISO 3369), M400
Strength to weight	3.37kN·m/kg	250kN·m/kg74.3x higher
Stiffness to weight	not sourced	25MN·m/kg
Poisson's ratio	not sourced	0.342sourcewrought TIMETAL 6-4 (TIMET measurement, mean of 10); composition-level, not DMLS-measured
Shear modulus	not sourced	41GPa
Bulk modulus	not sourced	116GPa
Speed of sound	not sourced	5,000m/s
Thermal
Thermal conductivity	not sourced	6.6W/m·Ksourcebase material: wrought Ti-6Al-4V / 6-4 ELI (TIMET datasheet), 20 °C
Thermal expansion	not sourced	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	not sourced	45µm growth
Specific heat	not sourced	580J/kg·Ksourcebase material: wrought Ti-6Al-4V / 6-4 ELI (TIMET datasheet), 20 °C
Heats up and cools (diffusivity)	not sourced	2.59mm²/s
Thermal shock resistance	not sourced	4,825W/m
Melting point	not sourced	1,630–1,650°Csourcemelting range, wrought TIMETAL 6-4 (composition-level)
Glass transition	-34.5°CsourceDMA	not sourced
Values for	Formlabs Elastic 50A Resin V2 (FLELCL02), TDS Rev. 01 24.01.2024; parts printed on Form 3, 100 µm, Elastic 50A V2 settings and post-processing; tensile on Die C specimens cut from printed sheets after 3+ h at 23 °C.	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.

SLA Resin Elastic 50A and DMLS Ti-6Al-4V ELI Titanium are 3D printed: their properties depend on build direction and print settings; these are typical values.

Questions

Is SLA Resin Elastic 50A stronger than DMLS Ti-6Al-4V ELI Titanium?

DMLS Ti-6Al-4V ELI Titanium is stronger: its yield strength is 1,100 MPa against tensile strength 3.4 MPa for SLA Resin Elastic 50A (324x).

Which is lighter, SLA Resin Elastic 50A or DMLS Ti-6Al-4V ELI Titanium?

SLA Resin Elastic 50A is lighter: 1,010 kg/m³ against 4,400 kg/m³ for DMLS Ti-6Al-4V ELI Titanium.

Which is lighter for the same job, SLA Resin Elastic 50A or DMLS Ti-6Al-4V ELI Titanium?

For the same stiffness or strength: DMLS Ti-6Al-4V ELI Titanium is lighter for a strong rod or tie, strong beam, strong panel or plate.

Part that must be	SLA Resin Elastic 50A	DMLS Ti-6Al-4V ELI Titanium
Strong rod or tie	74.3x heavier	lighter
Strong beam	10.8x heavier	lighter
Strong panel or plate	4.13x 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).

Among 59 materials

Stiffness against density

Strength against density