SLA Resin Tough 2000 vs. Titanium Ti-6Al-4V

Compare SLA Resin Tough 2000 vs. Titanium Ti-6Al-4V strength, stiffness, weight and thermal properties.

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SLA Resin Tough 20003D printed (SLA resin)

Mechanical
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Yield strength	40.4MPasourcetypical	885MPasourcetypical, plate (>0.187 in), annealed, 0.2% offset
Ultimate tensile strength	40.4MPasourcetypical	940MPasourcetypical, plate, annealed
Flexural strength	67MPasourcetypical	not sourced
Elongation at break	79%sourcetypical	16%sourcetypical, in 2 in., plate annealed
Young's modulus (stiffness)	1.8GPasourcetypical	107–122GPasourcetypical range, 20 °C
Density	1,090kg/m³sourcetypical	4,430kg/m³sourcenominal
Strength to weight	37.1kN·m/kg	200kN·m/kg5.39x higher
Stiffness to weight	1.65MN·m/kg	25.8MN·m/kg15.7x 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	1,285m/s	5,084m/s
Thermal
Thermal conductivity	not sourced	6.6W/m·Ksourcetypical, 20 °C, mill annealed
Thermal expansion	134µm/m·Ksourcemean 0-150 °C	9µm/m·Ksourcetypical, mean 0-100 °C
100 mm part over a 50 °C swing	671µm growth	45µm growth14.9x 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
Glass transition	112°CsourceDMA	not sourced
Max service temperature	57°CsourceHDT 1.8 MPa	400°Csourceupper recommended use temperature
Values for	Formlabs Tough 2000 Resin V2 (FLTO2002), TDS Rev. 01 10/06/2025; printed on Form 4 at 100 µm, washed in Form Wash V2 10+5 min in >=99% IPA, post-cured 70 °C for 12 min in Form Cure V2. Orientation not stated.	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.

SLA Resin Tough 2000 is 3D printed: its properties depend on build direction and print settings; these are typical values.

Questions

Is SLA Resin Tough 2000 stronger than Titanium Ti-6Al-4V?

Titanium Ti-6Al-4V is stronger: its yield strength is 885 MPa against 40.4 MPa for SLA Resin Tough 2000 (21.9x).

Which is lighter, SLA Resin Tough 2000 or Titanium Ti-6Al-4V?

SLA Resin Tough 2000 is lighter: 1,090 kg/m³ against 4,430 kg/m³ for Titanium Ti-6Al-4V.

Which is stiffer, SLA Resin Tough 2000 or Titanium Ti-6Al-4V?

Titanium Ti-6Al-4V is stiffer: Young's modulus 115 GPa against 1.8 GPa for SLA Resin Tough 2000, so the same part in Titanium Ti-6Al-4V deflects less under the same load.

Which is lighter for the same job, SLA Resin Tough 2000 or Titanium Ti-6Al-4V?

For the same stiffness or strength: SLA Resin Tough 2000 is lighter for a stiff panel or plate; Titanium Ti-6Al-4V 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	SLA Resin Tough 2000	Titanium Ti-6Al-4V
Stiff rod or tie (tension)	15.7x heavier	lighter
Stiff beam (bending)	1.96x heavier	lighter
Stiff panel or plate	lighter	2% heavier
Strong rod or tie	5.39x heavier	lighter
Strong beam	1.93x heavier	lighter
Strong panel or plate	15% 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 expands less with temperature?

Titanium Ti-6Al-4V expands less: 9 µm/m·K against 134 µm/m·K for SLA Resin Tough 2000.

Among 59 materials

Stiffness against density

Strength against density