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Ceramic Alumina 96% vs. Plastic Nylon PA6

Compare Ceramic Alumina 96% vs. Plastic Nylon PA6 strength, stiffness, weight and thermal properties.

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Ceramic Alumina 96%Sintered ceramic (pressed and fired)
Plastic Nylon PA6Bulk polymer (molded or machined)
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Mechanical
Yield strengthnot given (tensile used)90MPasourcetypical, dry
Ultimate tensile strength221MPasourcetypical tensile strength, 25 °C (ACMA Test #4)not sourced
Compressive strength2,068MPasourcetypical, 20 °C (ASTM-C773)not sourced
Flexural strength358MPasourceflexural strength (MOR), 20 °C (ASTM-F417)not sourced
Elongation at breaknot sourced10%sourcenominal strain at break, dry
Young's modulus (stiffness)303GPasourcetypical, 20 °C (ASTM-C848)3.5GPasourcetypical, dry
Density3,720kg/m³sourcetypical (ASTM-C20)1,130kg/m³sourcetypical
Strength to weight59.4kN·m/kg79.6kN·m/kg34% higher
Stiffness to weight81.5MN·m/kg26.3x higher3.1MN·m/kg
Poisson's ratio0.21sourcetypical, 20 °C (ASTM-C848)0.4sourcebase material: unfilled polyamide (PA), conditioned, maker design-guide family value (Covestro Table 3-1)
Shear modulus125GPa100x stiffer in shear1.25GPa
Bulk modulus174GPa5.83GPa
Speed of sound9,025m/s1,760m/s
Thermal
Thermal conductivity24.7W/m·Ksourcetypical, 20 °C (ASTM-C408)0.33W/m·Ksourcetypical
Thermal expansion8.2µm/m·Ksourcemean, 25-1000 °C (ASTM-C372)102µm/m·Ksourcelongitudinal, 23-55 °C
100 mm part over a 50 °C swing41µm growth12.4x less510µm growth
Specific heat880J/kg·Ksourcetypical, 100 °C (ASTM-E1269)1,700J/kg·Ksourcetypical
Heats up and cools (diffusivity)7.55mm²/s43.9x faster0.172mm²/s
Thermal shock resistance1,736W/m34.8x more resistant49.9W/m
Melting pointnot sourced220°CsourceDSC
Max service temperaturenot sourced87°CsourceIEC 60216 temperature index, 20000 h
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.BASF Ultramid B3S (PA6, unreinforced injection-moulding grade), Product Information 02/2026, dry values (ISO methods)

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.

Questions

Is Ceramic Alumina 96% stronger than Plastic Nylon PA6?

Ceramic Alumina 96% is stronger: its tensile strength is 221 MPa against yield strength 90 MPa for Plastic Nylon PA6 (2.46x).

Which is lighter, Ceramic Alumina 96% or Plastic Nylon PA6?

Plastic Nylon PA6 is lighter: 1,130 kg/m³ against 3,720 kg/m³ for Ceramic Alumina 96%.

Which is stiffer, Ceramic Alumina 96% or Plastic Nylon PA6?

Ceramic Alumina 96% is stiffer: Young's modulus 303 GPa against 3.5 GPa for Plastic Nylon PA6, 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 Plastic Nylon PA6?

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; Plastic Nylon PA6 is lighter for a strong rod or tie, strong beam, strong panel or plate.

Part that must beCeramic Alumina 96%Plastic Nylon PA6
Stiff rod or tie (tension)lighter26.3x heavier
Stiff beam (bending)lighter2.83x heavier
Stiff panel or platelighter34% heavier
Strong rod or tie34% heavierlighter
Strong beam1.81x heavierlighter
Strong panel or plate2.1x 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).

Which conducts heat better, Ceramic Alumina 96% or Plastic Nylon PA6?

Ceramic Alumina 96% conducts heat better: 24.7 W/m·K against 0.33 W/m·K for Plastic Nylon PA6.

Which expands less with temperature?

Ceramic Alumina 96% expands less: 8.2 µm/m·K against 102 µm/m·K for Plastic Nylon PA6.

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 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%Plastic Nylon PA6
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 PA66Plastic PEEKPlastic PTFEPlastic UHMWPEPlastic HDPEPlastic PolypropylenePlastic PMMAFDM ASAFDM PolycarbonateFDM PAHT-CFFDM HIPSSLA Resin Tough 2000SLA Resin Elastic 50ASLS 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%Plastic Nylon PA6
Strength against density

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