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Plastic LCP GF30 vs. Titanium

Compare Plastic LCP GF30 vs. Titanium strength, stiffness, weight and thermal properties.

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Plastic LCP GF30Bulk polymer (molded or machined)
TitaniumWrought
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Mechanical
Yield strengthnot given (tensile used)885MPasourcetypical, plate (>0.187 in), annealed, 0.2% offset
Ultimate tensile strength115MPasourcetensile strength (ISO 527)940MPasourcetypical, plate, annealed
Flexural strength184MPasourcetypical (ISO 178)not sourced
Elongation at break1.5%sourcetensile elongation (ISO 527)16%sourcetypical, in 2 in., plate annealed
Young's modulus (stiffness)11.5GPasourcetensile modulus (ISO 527)107–122GPasourcetypical range, 20 °C
Density1,610kg/m³sourcetypical4,430kg/m³sourcenominal
Strength to weight71.4kN·m/kg200kN·m/kg2.8x higher
Stiffness to weight7.14MN·m/kg25.8MN·m/kg3.62x higher
Poisson's rationot sourced0.342sourcemean of TIMET measurements
Shear modulusnot sourced42.7GPa
Bulk modulusnot sourced121GPa
Speed of sound2,673m/s5,084m/s
Thermal
Thermal conductivity0.5W/m·Ksourcehot disk (ISO 22007-2), temperature not stated6.6W/m·Ksourcetypical, 20 °C, mill annealed
Thermal expansion20µm/m·Ksourceflow direction (MD), mean 50-150 °C9µm/m·Ksourcetypical, mean 0-100 °C
100 mm part over a 50 °C swing100µm growth45µm growth2.22x less
Specific heat839J/kg·KsourceASTM E1269, temperature not stated580J/kg·Ksourcetypical, 20 °C
Heats up and cools (diffusivity)0.37mm²/s2.57mm²/s6.94x faster
Thermal shock resistancenot sourced3,730W/m
Melting pointnot sourced1,630–1,650°Csourcemelting range
Max service temperature288°CsourceHDT 1.8 MPa (ISO 75)400°Csourceupper recommended use temperature
Values forSumitomo Chemical SUMIKASUPER LCP E6006L (30% glass fibre; high strength, low shrinkage); SUMIKASUPER LCP Technical Note, Version 04 / Nov. 2023, typical values.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 Plastic LCP GF30 stronger than Titanium?

Titanium is stronger: its yield strength is 885 MPa against tensile strength 115 MPa for Plastic LCP GF30 (7.7x).

Which is lighter, Plastic LCP GF30 or Titanium?

Plastic LCP GF30 is lighter: 1,610 kg/m³ against 4,430 kg/m³ for Titanium.

Which is stiffer, Plastic LCP GF30 or Titanium?

Titanium is stiffer: Young's modulus 115 GPa against 11.5 GPa for Plastic LCP GF30, so the same part in Titanium deflects less under the same load.

Which is lighter for the same job, Plastic LCP GF30 or Titanium?

For the same stiffness or strength: Plastic LCP GF30 is lighter for a stiff panel or plate; Titanium is lighter for a stiff rod or tie (tension), stiff beam (bending), strong rod or tie, strong beam.

Part that must bePlastic LCP GF30Titanium
Stiff rod or tie (tension)3.62x heavierlighter
Stiff beam (bending)15% heavierlighter
Stiff panel or platelighter28% heavier
Strong rod or tie2.8x heavierlighter
Strong beam42% heavierlighter
Strong panel or plateabout equalabout equal

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, Plastic LCP GF30 or Titanium?

Titanium conducts heat better: 6.6 W/m·K against 0.5 W/m·K for Plastic LCP GF30.

Which expands less with temperature?

Titanium expands less: 9 µm/m·K against 20 µm/m·K for Plastic LCP GF30.

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 1100-OAluminum ADC12Magnesium AZ91DSolder SAC305Plastic PBT GF30Plastic PPS GF40Plastic LCP GF30Titanium
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 1100-OAluminum ADC12Magnesium AZ91DSolder SAC305Plastic PBT GF30Plastic PPS GF40Plastic LCP GF30Titanium
Strength against density

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