Copper C110 vs. Plastic LCP GF30

Compare Copper C110 vs. Plastic LCP GF30 strength, stiffness, weight and thermal properties.

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Plastic LCP GF30Bulk polymer (molded or machined)

Mechanical
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Yield strength	69MPasourcetypical, 0.5% extension under load	not given (tensile used)
Ultimate tensile strength	221MPasourcetypical	115MPasourcetensile strength (ISO 527)
Flexural strength	not sourced	184MPasourcetypical (ISO 178)
Elongation at break	55%sourcetypical, 1 in. rod	1.5%sourcetensile elongation (ISO 527)
Young's modulus (stiffness)	117GPasourcetypical	11.5GPasourcetensile modulus (ISO 527)
Density	8,913kg/m³sourcenominal	1,610kg/m³sourcetypical
Strength to weight	7.74kN·m/kg	71.4kN·m/kg9.23x higher
Stiffness to weight	13.1MN·m/kg1.84x higher	7.14MN·m/kg
Poisson's ratio	0.34sourcereference value at room temperature (Wieland-K32 = Cu-ETP = C11000, rolled products)	not sourced
Shear modulus	43.7GPa	not sourced
Bulk modulus	122GPa	not sourced
Speed of sound	3,626m/s	2,673m/s
Thermal
Thermal conductivity	391W/m·Ksourcetypical, 20 °C	0.5W/m·Ksourcehot disk (ISO 22007-2), temperature not stated
Thermal expansion	16.9µm/m·Ksourcetypical, mean 20-100 °C	20µm/m·Ksourceflow direction (MD), mean 50-150 °C
100 mm part over a 50 °C swing	84.5µm growth18% less	100µm growth
Specific heat	385J/kg·Ksourcetypical, 20 °C	839J/kg·KsourceASTM E1269, temperature not stated
Heats up and cools (diffusivity)	114mm²/s308x faster	0.37mm²/s
Thermal shock resistance	8,992W/m	not sourced
Melting point	1,065–1,083°Csourcesolidus-liquidus	not sourced
Max service temperature	not sourced	288°CsourceHDT 1.8 MPa (ISO 75)
Values for	C11000 ETP copper, annealed to 0.050 mm grain size (OS050), 1 in. rod, copper.org typical values	Sumitomo 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

Is Copper C110 stronger than Plastic LCP GF30?

Plastic LCP GF30 is stronger: its tensile strength is 115 MPa against yield strength 69 MPa for Copper C110 (1.67x).

Which is lighter, Copper C110 or Plastic LCP GF30?

Plastic LCP GF30 is lighter: 1,610 kg/m³ against 8,913 kg/m³ for Copper C110.

Which is stiffer, Copper C110 or Plastic LCP GF30?

Copper C110 is stiffer: Young's modulus 117 GPa against 11.5 GPa for Plastic LCP GF30, so the same part in Copper C110 deflects less under the same load.

Which is lighter for the same job, Copper C110 or Plastic LCP GF30?

For the same stiffness or strength: Copper C110 is lighter for a stiff rod or tie (tension); Plastic LCP GF30 is lighter for a stiff beam (bending), stiff panel or plate, strong rod or tie, strong beam, strong panel or plate.

Part that must be	Copper C110	Plastic LCP GF30
Stiff rod or tie (tension)	lighter	1.84x heavier
Stiff beam (bending)	1.73x heavier	lighter
Stiff panel or plate	2.55x heavier	lighter
Strong rod or tie	9.23x heavier	lighter
Strong beam	7.78x heavier	lighter
Strong panel or plate	7.15x heavier	lighter

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, Copper C110 or Plastic LCP GF30?

Copper C110 conducts heat better: 391 W/m·K against 0.5 W/m·K for Plastic LCP GF30.

Which expands less with temperature?

Copper C110 expands less: 16.9 µm/m·K against 20 µm/m·K for Plastic LCP GF30.

Among 72 materials

Stiffness against density

Strength against density