Aluminum 1100-O vs. SLA Resin Tough 2000

Compare Aluminum 1100-O 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	35MPasourcetypical, O, 0.0625 in specimen	40.4MPasourcetypical
Ultimate tensile strength	90MPasourcetypical, O	40.4MPasourcetypical
Flexural strength	not sourced	67MPasourcetypical
Elongation at break	35%sourcetypical, O, in 4D	79%sourcetypical
Young's modulus (stiffness)	69GPasourcetypical38.3x stiffer	1.8GPasourcetypical
Density	2,710kg/m³sourcenominal, 20 °C	1,090kg/m³sourcetypical
Strength to weight	12.9kN·m/kg	37.1kN·m/kg2.87x higher
Stiffness to weight	25.5MN·m/kg15.4x 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	5,046m/s	1,285m/s
Thermal
Thermal conductivity	222W/m·Ksourcetypical, O, 20 °C	not sourced
Thermal expansion	23.6µm/m·Ksourcetypical, mean 20-100 °C	134µm/m·Ksourcemean 0-150 °C
100 mm part over a 50 °C swing	118µm growth5.69x less	671µm growth
Specific heat	901J/kg·Ksourcebase material: commercially pure aluminium EN AW-1050A (Hydro), 20 °C	not sourced
Heats up and cools (diffusivity)	90.9mm²/s	not sourced
Thermal shock resistance	not sourced	not sourced
Melting point	640–655°Csourcemelting range	not sourced
Glass transition	not sourced	112°CsourceDMA
Max service temperature	not sourced	57°CsourceHDT 1.8 MPa
Values for	1100-O (annealed) commercially pure aluminium, Kaiser Aluminum Tube & Pipe Alloy 1100 Technical Data (Rev. 05/06), typical properties; specific heat from Hydro EN AW-1050A (99.5% Al) extruded-products datasheet (10/2018).	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 1100-O stronger than SLA Resin Tough 2000?

SLA Resin Tough 2000 is stronger: its yield strength is 40.4 MPa against 35 MPa for Aluminum 1100-O (15%).

Which is lighter, Aluminum 1100-O or SLA Resin Tough 2000?

SLA Resin Tough 2000 is lighter: 1,090 kg/m³ against 2,710 kg/m³ for Aluminum 1100-O.

Which is stiffer, Aluminum 1100-O or SLA Resin Tough 2000?

Aluminum 1100-O is stiffer: Young's modulus 69 GPa against 1.8 GPa for SLA Resin Tough 2000, so the same part in Aluminum 1100-O deflects less under the same load.

Which is lighter for the same job, Aluminum 1100-O or SLA Resin Tough 2000?

For the same stiffness or strength: Aluminum 1100-O is lighter for a stiff rod or tie (tension), stiff beam (bending), stiff panel or plate; SLA Resin Tough 2000 is lighter for a strong rod or tie, strong beam, strong panel or plate.

Part that must be	Aluminum 1100-O	SLA Resin Tough 2000
Stiff rod or tie (tension)	lighter	15.4x heavier
Stiff beam (bending)	lighter	2.49x heavier
Stiff panel or plate	lighter	36% heavier
Strong rod or tie	2.87x heavier	lighter
Strong beam	2.74x heavier	lighter
Strong panel or plate	2.67x 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?

Aluminum 1100-O expands less: 23.6 µm/m·K against 134 µm/m·K for SLA Resin Tough 2000.

Among 72 materials

Stiffness against density

Strength against density