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Ceramic Alumina 96% vs. SLA Resin Elastic 50A

Compare Ceramic Alumina 96% vs. SLA Resin Elastic 50A strength, stiffness, weight and thermal properties.

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Ceramic Alumina 96%Sintered ceramic (pressed and fired)
SLA Resin Elastic 50A3D printed (SLA resin)
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Mechanical
Yield strengthnot given (tensile used)not given (tensile used)
Ultimate tensile strength221MPasourcetypical tensile strength, 25 °C (ACMA Test #4)3.4MPasourcetypical
Compressive strength2,068MPasourcetypical, 20 °C (ASTM-C773)not sourced
Flexural strength358MPasourceflexural strength (MOR), 20 °C (ASTM-F417)not sourced
Elongation at breaknot sourced160%sourcetypical
Young's modulus (stiffness)303GPasourcetypical, 20 °C (ASTM-C848)not sourced
Density3,720kg/m³sourcetypical (ASTM-C20)1,010kg/m³sourcetypical
Strength to weight59.4kN·m/kg17.6x higher3.37kN·m/kg
Stiffness to weight81.5MN·m/kgnot sourced
Poisson's ratio0.21sourcetypical, 20 °C (ASTM-C848)not sourced
Shear modulus125GPanot sourced
Bulk modulus174GPanot sourced
Speed of sound9,025m/snot sourced
Thermal
Thermal conductivity24.7W/m·Ksourcetypical, 20 °C (ASTM-C408)not sourced
Thermal expansion8.2µm/m·Ksourcemean, 25-1000 °C (ASTM-C372)not sourced
100 mm part over a 50 °C swing41µm growthnot sourced
Specific heat880J/kg·Ksourcetypical, 100 °C (ASTM-E1269)not sourced
Heats up and cools (diffusivity)7.55mm²/snot sourced
Thermal shock resistance1,736W/mnot sourced
Glass transitionnot sourced-34.5°CsourceDMA
Values forCoorsTek AD-96, nominal 96% Al2O3 sintered alumina, typical values; CoorsTek "Ceramic Seal Material Properties" (© 2018, 01899 F). AD-96 is the general 96% grade, not the ADS-96R substrate grade.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 Ceramic Alumina 96% stronger than SLA Resin Elastic 50A?

Ceramic Alumina 96% is stronger: its tensile strength is 221 MPa against 3.4 MPa for SLA Resin Elastic 50A (65x).

Which is lighter, Ceramic Alumina 96% or SLA Resin Elastic 50A?

SLA Resin Elastic 50A is lighter: 1,010 kg/m³ against 3,720 kg/m³ for Ceramic Alumina 96%.

Which is lighter for the same job, Ceramic Alumina 96% or SLA Resin Elastic 50A?

For the same stiffness or strength: Ceramic Alumina 96% is lighter for a strong rod or tie, strong beam, strong panel or plate.

Part that must beCeramic Alumina 96%SLA Resin Elastic 50A
Strong rod or tielighter17.6x heavier
Strong beamlighter4.39x heavier
Strong panel or platelighter2.19x 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 Aluminum NitrideAluminum A380Aluminum 6063-T6Aluminum 1100-OAluminum ADC12Magnesium AZ91DSolder SAC305Plastic PBT GF30Plastic PPS GF40Plastic LCP GF30Ceramic Alumina 96%
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-4SiliconAluminum A380Aluminum 6063-T6Aluminum 1100-OAluminum ADC12Magnesium AZ91DSolder SAC305Plastic PBT GF30Plastic PPS GF40Plastic LCP GF30Ceramic Alumina 96%SLA Resin Elastic 50A
Strength against density

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