Aluminum A380 vs. SLA Resin Tough 2000

Compare Aluminum A380 vs. SLA Resin Tough 2000 strength, stiffness, weight and thermal properties.

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SLA Resin Tough 20003D printed (SLA resin)

Mechanical
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Yield strength	160MPasourcetypical, 25 °C	40.4MPasourcetypical
Ultimate tensile strength	320MPasourcetypical, 25 °C	40.4MPasourcetypical
Flexural strength	not sourced	67MPasourcetypical
Elongation at break	3.5%sourcetypical	79%sourcetypical22.6x more ductile
Young's modulus (stiffness)	71GPasourcetypical, 25 °C	1.8GPasourcetypical
Density	2,713kg/m³sourcetypical at 68 °F	1,090kg/m³sourcetypical
Strength to weight	59kN·m/kg1.59x higher	37.1kN·m/kg
Stiffness to weight	26.2MN·m/kg15.8x higher	1.65MN·m/kg
Poisson's ratio	not sourced	not sourced
Shear modulus	not sourced	not sourced
Bulk modulus	not sourced	not sourced
Speed of sound	5,116m/s	1,285m/s
Thermal
Thermal conductivity	96.2W/m·Ksourcetypical at 68 °F	not sourced
Thermal expansion	21.8µm/m·Ksourcetypical, 68-572 °F (20-300 °C)	134µm/m·Ksourcemean 0-150 °C
100 mm part over a 50 °C swing	109µm growth6.16x less	671µm growth
Specific heat	963J/kg·Ksourcetypical at 68 °F	not sourced
Heats up and cools (diffusivity)	36.8mm²/s	not sourced
Thermal shock resistance	not sourced	not sourced
Glass transition	not sourced	112°CsourceDMA
Max service temperature	not sourced	57°CsourceHDT 1.8 MPa
Values for	A380 aluminium high-pressure die-casting alloy, typical properties; Rheocast Company (aluminium die caster, Germantown WI) A380 alloy data page.	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.

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 Aluminum A380 stronger than SLA Resin Tough 2000?

Aluminum A380 is stronger: its yield strength is 160 MPa against 40.4 MPa for SLA Resin Tough 2000 (3.96x).

Which is lighter, Aluminum A380 or SLA Resin Tough 2000?

SLA Resin Tough 2000 is lighter: 1,090 kg/m³ against 2,713 kg/m³ for Aluminum A380.

Which is stiffer, Aluminum A380 or SLA Resin Tough 2000?

Aluminum A380 is stiffer: Young's modulus 71 GPa against 1.8 GPa for SLA Resin Tough 2000, so the same part in Aluminum A380 deflects less under the same load.

Which is lighter for the same job, Aluminum A380 or SLA Resin Tough 2000?

For the same stiffness or strength: Aluminum A380 is lighter for a stiff rod or tie (tension), stiff beam (bending), stiff panel or plate, strong rod or tie; SLA Resin Tough 2000 is lighter for a strong panel or plate.

Part that must be	Aluminum A380	SLA Resin Tough 2000
Stiff rod or tie (tension)	lighter	15.8x heavier
Stiff beam (bending)	lighter	2.52x heavier
Stiff panel or plate	lighter	37% heavier
Strong rod or tie	lighter	1.59x heavier
Strong beam	about equal	about equal
Strong panel or plate	25% 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 is more ductile, Aluminum A380 or SLA Resin Tough 2000?

SLA Resin Tough 2000 stretches further before it breaks: 79% elongation at break against 3.5% for Aluminum A380.

Which expands less with temperature?

Aluminum A380 expands less: 21.8 µm/m·K against 134 µm/m·K for SLA Resin Tough 2000.

Among 72 materials

Stiffness against density

Strength against density