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Aluminum ADC12 vs. SLA Resin Elastic 50A

Compare Aluminum ADC12 vs. SLA Resin Elastic 50A strength, stiffness, weight and thermal properties.

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Aluminum ADC12Cast
SLA Resin Elastic 50A3D printed (SLA resin)
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Mechanical
Yield strength149MPasourceone test result, 0.2% proof stress, as cast, ASTM tensile bar (Daiki)not given (tensile used)
Ultimate tensile strength345MPasourceone test result, as cast, ASTM tensile bar (Daiki)3.4MPasourcetypical
Elongation at break2.3%sourceone test result, as cast, ASTM tensile bar (Daiki)160%sourcetypical
Young's modulus (stiffness)79.8GPasourcestandard value (S.S.Aluminum)not sourced
Density2,680kg/m³sourcemeasured (Daiki)1,010kg/m³sourcetypical
Strength to weight55.6kN·m/kg16.5x higher3.37kN·m/kg
Stiffness to weight29.8MN·m/kgnot sourced
Poisson's rationot sourcednot sourced
Shear modulusnot sourcednot sourced
Bulk modulusnot sourcednot sourced
Speed of sound5,457m/snot sourced
Thermal
Thermal conductivity125W/m·Ksourcemeasured on specimens cut from a 50 x 100 x 5 mm flat die casting (Daiki)not sourced
Thermal expansion21µm/m·Ksourcemeasured, temperature range not stated (Daiki)not sourced
100 mm part over a 50 °C swing105µm growthnot sourced
Specific heat911J/kg·Ksourcemeasured (Daiki)not sourced
Heats up and cools (diffusivity)51.2mm²/snot sourced
Thermal shock resistancenot sourcednot sourced
Melting point515–582°Csourcesolidus-liquidus (Daiki)not sourced
Glass transitionnot sourced-34.5°CsourceDMA
Values forJIS ADC12 (Al-Si-Cu, about A383 / EN AC-46100) high-pressure die-casting alloy, as cast; physical properties from Daiki Aluminium Industry (ADC12 ingot producer) measured values; modulus from S.S.Aluminum (ADC12 ingot producer) standard values.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.

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

Questions

Is Aluminum ADC12 stronger than SLA Resin Elastic 50A?

Aluminum ADC12 is stronger: its yield strength is 149 MPa against tensile strength 3.4 MPa for SLA Resin Elastic 50A (43.8x).

Which is lighter, Aluminum ADC12 or SLA Resin Elastic 50A?

SLA Resin Elastic 50A is lighter: 1,010 kg/m³ against 2,680 kg/m³ for Aluminum ADC12.

Which is lighter for the same job, Aluminum ADC12 or SLA Resin Elastic 50A?

For the same stiffness or strength: Aluminum ADC12 is lighter for a strong rod or tie, strong beam, strong panel or plate.

Part that must beAluminum ADC12SLA Resin Elastic 50A
Strong rod or tielighter16.5x heavier
Strong beamlighter4.68x heavier
Strong panel or platelighter2.49x heavier

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 72 materials

1k10k0.1110100Density (kg/m³)Young's modulus (GPa)Plastic PLAPlastic PETGPlastic ABSPlastic TPUPlastic NylonAluminumSteelIronTitaniumSteel AISI 1018Stainless Steel 304Stainless Steel 316Aluminum 6061-T6Aluminum 7075-T6Brass C360Copper C110GlassSteel AISI 1045Steel AISI 4340Steel A992Stainless Steel 303Stainless Steel 17-4PHAluminum 2024-T351Aluminum 5052-H32Aluminum 7050-T7451Titanium Ti-6Al-4VBrass C260Nickel Inconel 718Magnesium AZ31B-H24Zinc Zamak 3Plastic ABS (bulk/injection)Plastic PolycarbonatePlastic POM/AcetalPlastic Nylon PA6Plastic Nylon PA66Plastic PEEKPlastic UHMWPEPlastic HDPEPlastic PolypropylenePlastic PMMAFDM ASAFDM PolycarbonateFDM PAHT-CFFDM HIPSSLA Resin Tough 2000SLS PA12 NylonDMLS AlSi10Mg AluminumDMLS Ti-6Al-4V ELI TitaniumDMLS 316L Stainless SteelDMLS 17-4PH Stainless SteelPCB Laminate FR-4SiliconCeramic Alumina 96%Ceramic Aluminum NitrideAluminum A380Aluminum 6063-T6Aluminum 1100-OMagnesium AZ91DSolder SAC305Plastic PBT GF30Plastic PPS GF40Plastic LCP GF30Aluminum ADC12
Stiffness against density
1k10k101001kDensity (kg/m³)Yield strength (MPa)Plastic PLAPlastic PETGPlastic ABSPlastic TPUPlastic NylonRubberAluminumSteelIronTitaniumSteel AISI 1018Stainless Steel 304Stainless Steel 316Aluminum 6061-T6Aluminum 7075-T6Brass C360Copper C110GlassSteel AISI 1045Steel AISI 4340Steel A992Stainless Steel 303Stainless Steel 17-4PHAluminum 2024-T351Aluminum 5052-H32Aluminum 7050-T7451Titanium Ti-6Al-4VBrass C260Nickel Inconel 718Magnesium AZ31B-H24Zinc Zamak 3Plastic ABS (bulk/injection)Plastic PolycarbonatePlastic POM/AcetalPlastic Nylon PA6Plastic Nylon PA66Plastic PEEKPlastic PTFEPlastic UHMWPEPlastic HDPEPlastic PolypropylenePlastic PMMAFDM ASAFDM PolycarbonateFDM PAHT-CFFDM HIPSSLA Resin Tough 2000SLS PA12 NylonDMLS AlSi10Mg AluminumDMLS Ti-6Al-4V ELI TitaniumDMLS 316L Stainless SteelDMLS 17-4PH Stainless SteelBrickPCB Laminate FR-4SiliconCeramic Alumina 96%Aluminum A380Aluminum 6063-T6Aluminum 1100-OMagnesium AZ91DSolder SAC305Plastic PBT GF30Plastic PPS GF40Plastic LCP GF30Aluminum ADC12SLA Resin Elastic 50A
Strength against density

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