Materials / Compare

Aluminum 1100-O vs. Titanium

Compare Aluminum 1100-O vs. Titanium strength, stiffness, weight and thermal properties.

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Aluminum 1100-OWrought
TitaniumWrought
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Mechanical
Yield strength35MPasourcetypical, O, 0.0625 in specimen885MPasourcetypical, plate (>0.187 in), annealed, 0.2% offset
Ultimate tensile strength90MPasourcetypical, O940MPasourcetypical, plate, annealed
Elongation at break35%sourcetypical, O, in 4D16%sourcetypical, in 2 in., plate annealed
Young's modulus (stiffness)69GPasourcetypical107–122GPasourcetypical range, 20 °C
Density2,710kg/m³sourcenominal, 20 °C4,430kg/m³sourcenominal
Strength to weight12.9kN·m/kg200kN·m/kg15.5x higher
Stiffness to weight25.5MN·m/kg25.8MN·m/kg2% higher
Poisson's rationot sourced0.342sourcemean of TIMET measurements
Shear modulusnot sourced42.7GPa
Bulk modulusnot sourced121GPa
Speed of sound5,046m/s5,084m/s
Thermal
Thermal conductivity222W/m·Ksourcetypical, O, 20 °C6.6W/m·Ksourcetypical, 20 °C, mill annealed
Thermal expansion23.6µm/m·Ksourcetypical, mean 20-100 °C9µm/m·Ksourcetypical, mean 0-100 °C
100 mm part over a 50 °C swing118µm growth45µm growth2.62x less
Specific heat901J/kg·Ksourcebase material: commercially pure aluminium EN AW-1050A (Hydro), 20 °C580J/kg·Ksourcetypical, 20 °C
Heats up and cools (diffusivity)90.9mm²/s35.4x faster2.57mm²/s
Thermal shock resistancenot sourced3,730W/m
Melting point640–655°Csourcemelting range1,630–1,650°Csourcemelting range
Max service temperaturenot sourced400°Csourceupper recommended use temperature
Values for1100-O (annealed) commercially pure aluminium, Kaiser Aluminum Tube & Pipe Alloy 1100 Technical Data (Rev. 05/06), typical properties; specific heat from Hydro EN AW-1050A (99.5% Al) extruded-products datasheet (10/2018).TIMETAL 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

Is Aluminum 1100-O stronger than Titanium?

Titanium is stronger: its yield strength is 885 MPa against 35 MPa for Aluminum 1100-O (25.3x).

Which is lighter, Aluminum 1100-O or Titanium?

Aluminum 1100-O is lighter: 2,710 kg/m³ against 4,430 kg/m³ for Titanium.

Which is stiffer, Aluminum 1100-O or Titanium?

Titanium is stiffer: Young's modulus 115 GPa against 69 GPa for Aluminum 1100-O, so the same part in Titanium deflects less under the same load.

Which is lighter for the same job, Aluminum 1100-O or Titanium?

For the same stiffness or strength: Aluminum 1100-O is lighter for a stiff beam (bending), stiff panel or plate; Titanium is lighter for a stiff rod or tie (tension), strong rod or tie, strong beam, strong panel or plate.

Part that must beAluminum 1100-OTitanium
Stiff rod or tie (tension)2% heavierlighter
Stiff beam (bending)lighter27% heavier
Stiff panel or platelighter38% heavier
Strong rod or tie15.5x heavierlighter
Strong beam5.27x heavierlighter
Strong panel or plate3.08x 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, Aluminum 1100-O or Titanium?

Aluminum 1100-O conducts heat better: 222 W/m·K against 6.6 W/m·K for Titanium.

Which expands less with temperature?

Titanium expands less: 9 µm/m·K against 23.6 µm/m·K for Aluminum 1100-O.

Among 72 materials

1k10k0.1110100Density (kg/m³)Young's modulus (GPa)Plastic PLAPlastic PETGPlastic ABSPlastic TPUPlastic NylonAluminumSteelIronSteel 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 ADC12Magnesium AZ91DSolder SAC305Plastic PBT GF30Plastic PPS GF40Plastic LCP GF30Aluminum 1100-OTitanium
Stiffness against density
1k10k101001kDensity (kg/m³)Yield strength (MPa)Plastic PLAPlastic PETGPlastic ABSPlastic TPUPlastic NylonRubberAluminumSteelIronSteel 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 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 ADC12Magnesium AZ91DSolder SAC305Plastic PBT GF30Plastic PPS GF40Plastic LCP GF30Aluminum 1100-OTitanium
Strength against density

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