Thermal conductivity against densityHigher and further left: spreads more heat for its weightThermal expansion against thermal conductivityLower and further right: warps less when heated
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Sources2 documents: Kaiser Aluminum, Sumitomo Chemical
Aluminum 3003-O
3003-O (annealed) aluminium-manganese alloy, the heat-exchanger tube and brazing alloy, Kaiser Aluminum Tube & Pipe Alloy 3003 Technical Data (Rev. 05/06), typical properties; specific heat from the NIST cryogenic 3003-F fit at 293 K.
Plastic LCP GF30
Sumitomo Chemical SUMIKASUPER LCP E6006L (30% glass fibre; high strength, low shrinkage); SUMIKASUPER LCP Technical Note, Version 04 / Nov. 2023, typical values.
1
Alloy 3003 Tube & Pipe Technical Data, Rev. 05/06Kaiser Aluminumarchived copyAluminum 3003-O · Yield strength: typical, O, 0.0625 in specimenAluminum 3003-O · Ultimate tensile strength: typical, OAluminum 3003-O · Elongation at break: typical, O, in 4DAluminum 3003-O · Young's modulus (stiffness): typicalAluminum 3003-O · Density: nominal, 20 °CAluminum 3003-O · Thermal conductivity: typical, O, 20 °CAluminum 3003-O · Thermal expansion: typical, mean 20-100 °CAluminum 3003-O · Melting point: melting range
2
SUMIKASUPER LCP Technical Note, Version 04 (2023)Sumitomo Chemicalarchived copyPlastic LCP GF30 · Ultimate tensile strength: tensile strength (ISO 527)Plastic LCP GF30 · Flexural strength: typical (ISO 178)Plastic LCP GF30 · Elongation at break: tensile elongation (ISO 527)Plastic LCP GF30 · Young's modulus (stiffness): tensile modulus (ISO 527)Plastic LCP GF30 · Density: typicalPlastic LCP GF30 · Thermal conductivity: hot disk (ISO 22007-2), temperature not statedPlastic LCP GF30 · Thermal expansion: flow direction (MD), mean 50-150 °CPlastic LCP GF30 · Specific heat: ASTM E1269, temperature not statedPlastic LCP GF30 · Max service temperature: HDT 1.8 MPa (ISO 75)
Each number points to the document that states it, with the exact basis. Values without a number are computed from the sourced ones. "Not sourced" means no citable source states it (or only a specification minimum); figures computed from it are left out too.
Questions
Mechanical
Is Aluminum 3003-O stronger than Plastic LCP GF30?
Plastic LCP GF30 is stronger: its tensile strength is 115 MPa against yield strength 40 MPa for Aluminum 3003-O (2.88x).
Which is lighter, Aluminum 3003-O or Plastic LCP GF30?
Plastic LCP GF30 is lighter: 1,610 kg/m³ against 2,730 kg/m³ for Aluminum 3003-O.
Which is stiffer, Aluminum 3003-O or Plastic LCP GF30?
Aluminum 3003-O is stiffer: Young's modulus 69 GPa against 11.5 GPa for Plastic LCP GF30, so the same part in Aluminum 3003-O deflects less under the same load.
Which is lighter for the same job, Aluminum 3003-O or Plastic LCP GF30?
For the same stiffness or strength: Aluminum 3003-O is lighter for a stiff rod or tie (tension), stiff beam (bending), stiff panel or plate; Plastic LCP GF30 is lighter for a strong rod or tie, strong beam, strong panel or plate.
Part that must be
Aluminum 3003-O
Plastic LCP GF30
Stiff rod or tie (tension)
lighter
3.54x heavier
Stiff beam (bending)
lighter
44% heavier
Stiff panel or plate
lighter
7% heavier
Strong rod or tie
4.88x heavier
lighter
Strong beam
3.43x heavier
lighter
Strong panel or plate
2.88x 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 is more ductile, Aluminum 3003-O or Plastic LCP GF30?
Aluminum 3003-O stretches further before it breaks: 30% elongation at break against 1.5% for Plastic LCP GF30.
Thermal
Which conducts heat better, Aluminum 3003-O or Plastic LCP GF30?
Aluminum 3003-O conducts heat better: 193 W/m·K against 0.5 W/m·K for Plastic LCP GF30.
Which expands less with temperature?
Plastic LCP GF30 expands less: 20 µm/m·K against 23.2 µm/m·K for Aluminum 3003-O.