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Ceramic Alumina 96% vs. SLS PA12 Nylon

Compare Ceramic Alumina 96% vs. SLS PA12 Nylon strength, stiffness, weight and thermal properties.

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Ceramic Alumina 96%Sintered ceramic (pressed and fired)
SLS PA12 Nylon3D printed (SLS)
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Mechanical
Yield strengthnot given (tensile used)not given (tensile used)
Ultimate tensile strength221MPasourcetypical tensile strength, 25 °C (ACMA Test #4)48MPasourcetypical
Compressive strength2,068MPasourcetypical, 20 °C (ASTM-C773)not sourced
Flexural strength358MPasourceflexural strength (MOR), 20 °C (ASTM-F417)not sourced
Elongation at breaknot sourced18%sourcetypical
Young's modulus (stiffness)303GPasourcetypical, 20 °C (ASTM-C848)1.65GPasourcetypical
Density3,720kg/m³sourcetypical (ASTM-C20)930kg/m³sourcetypical
Strength to weight59.4kN·m/kg15% higher51.6kN·m/kg
Stiffness to weight81.5MN·m/kg45.9x higher1.77MN·m/kg
Poisson's ratio0.21sourcetypical, 20 °C (ASTM-C848)not sourced
Shear modulus125GPanot sourced
Bulk modulus174GPanot sourced
Speed of sound9,025m/s1,332m/s
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
Melting pointnot sourced176°Csourcetypical
Max service temperaturenot sourced64°CsourceHDT 1.8 MPa, X orientation
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.EOS PA 2200 (PA12) Material Data Sheet, process parameter 'Balance' at 120 µm layer thickness, X orientation, dry (conditioned values not given). Live MDS status 04.10.2026, last changed 10.09.2026; PDF via ?topdf=... link on the same page.

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.

SLS PA12 Nylon is 3D printed: its properties depend on build direction and print settings; these are typical values.

Questions

Is Ceramic Alumina 96% stronger than SLS PA12 Nylon?

Ceramic Alumina 96% is stronger: its tensile strength is 221 MPa against 48 MPa for SLS PA12 Nylon (4.6x).

Which is lighter, Ceramic Alumina 96% or SLS PA12 Nylon?

SLS PA12 Nylon is lighter: 930 kg/m³ against 3,720 kg/m³ for Ceramic Alumina 96%.

Which is stiffer, Ceramic Alumina 96% or SLS PA12 Nylon?

Ceramic Alumina 96% is stiffer: Young's modulus 303 GPa against 1.65 GPa for SLS PA12 Nylon, so the same part in Ceramic Alumina 96% deflects less under the same load.

Which is lighter for the same job, Ceramic Alumina 96% or SLS PA12 Nylon?

For the same stiffness or strength: Ceramic Alumina 96% is lighter for a stiff rod or tie (tension), stiff beam (bending), stiff panel or plate, strong rod or tie; SLS PA12 Nylon is lighter for a strong beam, strong panel or plate.

Part that must beCeramic Alumina 96%SLS PA12 Nylon
Stiff rod or tie (tension)lighter45.9x heavier
Stiff beam (bending)lighter3.39x heavier
Stiff panel or platelighter42% heavier
Strong rod or tielighter15% heavier
Strong beam45% heavierlighter
Strong panel or plate1.86x heavierlighter

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 2000DMLS 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%SLS PA12 Nylon
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 2000SLA Resin Elastic 50ADMLS 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%SLS PA12 Nylon
Strength against density

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