Materials / Compare

Ceramic Aluminum Nitride vs. Titanium Ti-6Al-4V

Compare Ceramic Aluminum Nitride vs. Titanium Ti-6Al-4V strength, stiffness, weight and thermal properties.

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Ceramic Aluminum NitrideSintered ceramic (pressed and fired)
Titanium Ti-6Al-4VWrought
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Mechanical
Yield strengthnot sourced885MPasourcetypical, plate (>0.187 in), annealed, 0.2% offset
Ultimate tensile strengthnot sourced940MPasourcetypical, plate, annealed
Flexural strength310MPasource3-point bending strength (JIS R 1601)not sourced
Elongation at breaknot sourced16%sourcetypical, in 2 in., plate annealed
Young's modulus (stiffness)320GPasourcetypical (JIS R 1602)107–122GPasourcetypical range, 20 °C
Density3,400kg/m³sourcetypical (JIS R 1634)4,430kg/m³sourcenominal
Strength to weightnot sourced200kN·m/kg
Stiffness to weight94.1MN·m/kg3.64x higher25.8MN·m/kg
Poisson's ratio0.24sourcetypical (JIS R 1602)0.342sourcemean of TIMET measurements
Shear modulus129GPa3.02x stiffer in shear42.7GPa
Bulk modulus205GPa121GPa
Speed of sound9,701m/s5,084m/s
Thermal
Thermal conductivity150W/m·Ksourcetypical (JIS R 1611)6.6W/m·Ksourcetypical, 20 °C, mill annealed
Thermal expansion4.6µm/m·Ksourcemean, 40-400 °C (JIS R 1618)9µm/m·Ksourcetypical, mean 0-100 °C
100 mm part over a 50 °C swing23µm growth1.96x less45µm growth
Specific heat710J/kg·Ksourcetypical (JIS R 1611)580J/kg·Ksourcetypical, 20 °C
Heats up and cools (diffusivity)62.1mm²/s24.2x faster2.57mm²/s
Thermal shock resistancenot sourced3,730W/m
Melting pointnot sourced1,630–1,650°Csourcemelting range
Max service temperaturenot sourced400°Csourceupper recommended use temperature
Values forKYOCERA AN216A dense sintered aluminium nitride, typical values; KYOCERA Fineceramics Europe data sheet 2023.04.03TIMETAL 6-4 (Ti-6Al-4V Grade 5) annealed plate typical (TIMET properties manual) + TIMET datasheet TMC-0150 physical properties

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

Which is lighter, Ceramic Aluminum Nitride or Titanium Ti-6Al-4V?

Ceramic Aluminum Nitride is lighter: 3,400 kg/m³ against 4,430 kg/m³ for Titanium Ti-6Al-4V.

Which is stiffer, Ceramic Aluminum Nitride or Titanium Ti-6Al-4V?

Ceramic Aluminum Nitride is stiffer: Young's modulus 320 GPa against 115 GPa for Titanium Ti-6Al-4V, so the same part in Ceramic Aluminum Nitride deflects less under the same load.

Which is lighter for the same job, Ceramic Aluminum Nitride or Titanium Ti-6Al-4V?

For the same stiffness or strength: Ceramic Aluminum Nitride is lighter for a stiff rod or tie (tension), stiff beam (bending), stiff panel or plate.

Part that must beCeramic Aluminum NitrideTitanium Ti-6Al-4V
Stiff rod or tie (tension)lighter3.64x heavier
Stiff beam (bending)lighter2.18x heavier
Stiff panel or platelighter1.84x 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).

Which conducts heat better, Ceramic Aluminum Nitride or Titanium Ti-6Al-4V?

Ceramic Aluminum Nitride conducts heat better: 150 W/m·K against 6.6 W/m·K for Titanium Ti-6Al-4V.

Which expands less with temperature?

Ceramic Aluminum Nitride expands less: 4.6 µm/m·K against 9 µm/m·K for Titanium Ti-6Al-4V.

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-T7451Brass 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%Aluminum A380Aluminum 6063-T6Aluminum 1100-OAluminum ADC12Magnesium AZ91DSolder SAC305Plastic PBT GF30Plastic PPS GF40Plastic LCP GF30Ceramic Aluminum NitrideTitanium Ti-6Al-4V
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-T7451Brass 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 50ASLS 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-OAluminum ADC12Magnesium AZ91DSolder SAC305Plastic PBT GF30Plastic PPS GF40Plastic LCP GF30Titanium Ti-6Al-4V
Strength against density

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