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Concrete vs. Plastic LCP GF30

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

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ConcreteCast
Plastic LCP GF30Bulk polymer (molded or machined)
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Mechanical
Yield strengthnot sourcednot given (tensile used)
Ultimate tensile strengthnot sourced115MPasourcetensile strength (ISO 527)
Compressive strength27.6MPasourcespecified compressive strength class (f'c), not a measured typicalnot sourced
Flexural strengthnot sourced184MPasourcetypical (ISO 178)
Elongation at breaknot sourced1.5%sourcetensile elongation (ISO 527)
Young's modulus (stiffness)not sourced11.5GPasourcetensile modulus (ISO 527)
Density2,240–2,400kg/m³sourcerange for normalweight concrete1,610kg/m³sourcetypical
Strength to weightnot sourced71.4kN·m/kg
Stiffness to weightnot sourced7.14MN·m/kg
Poisson's ratio0.15–0.2sourcegeneral range at normal ambient conditions (overall 0.11-0.32)not sourced
Shear modulusnot sourcednot sourced
Bulk modulusnot sourcednot sourced
Speed of soundnot sourced2,673m/s
Thermal
Thermal conductivity0.9W/m·Ksourcetypical (comparative value)0.5W/m·Ksourcehot disk (ISO 22007-2), temperature not stated
Thermal expansion8–12µm/m·Ksourcetypical range for portland cement concrete (aggregate dependent)20µm/m·Ksourceflow direction (MD), mean 50-150 °C
100 mm part over a 50 °C swing50µm growth2x less100µm growth
Specific heat900J/kg·Ksourcetypical (NIST guidance for thermal analysis)839J/kg·KsourceASTM E1269, temperature not stated
Heats up and cools (diffusivity)0.431mm²/s16% faster0.37mm²/s
Thermal shock resistancenot sourcednot sourced
Max service temperature65°Csourcecode long-term temperature limit (ASME Code, concrete containments)288°CsourceHDT 1.8 MPa (ISO 75)
Values forNormal-weight portland cement concrete, strength class f'c = 4000 psi (28 MPa) per NRMCA CIP 35; density NRMCA CIP 36; thermal conductivity USDA FPL Wood Handbook; service temperature ORNL/NRC reviewSumitomo Chemical SUMIKASUPER LCP E6006L (30% glass fibre; high strength, low shrinkage); SUMIKASUPER LCP Technical Note, Version 04 / Nov. 2023, typical values.

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, Concrete or Plastic LCP GF30?

Plastic LCP GF30 is lighter: 1,610 kg/m³ against 2,320 kg/m³ for Concrete.

Which conducts heat better, Concrete or Plastic LCP GF30?

Concrete conducts heat better: 0.9 W/m·K against 0.5 W/m·K for Plastic LCP GF30.

Which expands less with temperature?

Concrete expands less: 10 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 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 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 GF30
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 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 GF30
Strength against density

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