Aluminum 5052-H32 vs. Aluminum A380

Compare Aluminum 5052-H32 vs. Aluminum A380 strength, stiffness, weight and thermal properties.

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Mechanical
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Yield strength	195MPasourcetypical, 0.2% offset	160MPasourcetypical, 25 °C
Ultimate tensile strength	230MPasourcetypical	320MPasourcetypical, 25 °C
Elongation at break	12%sourcetypical3.43x more ductile	3.5%sourcetypical
Young's modulus (stiffness)	70GPasourcetypical	71GPasourcetypical, 25 °C
Density	2,685kg/m³sourcenominal	2,713kg/m³sourcetypical at 68 °F
Strength to weight	72.6kN·m/kg23% higher	59kN·m/kg
Stiffness to weight	26.1MN·m/kg	26.2MN·m/kg
Poisson's ratio	0.33sourcetypical (handbook physical constant)	not sourced
Shear modulus	26.3GPa	not sourced
Bulk modulus	68.6GPa	not sourced
Speed of sound	5,106m/s	5,116m/s
Thermal
Thermal conductivity	138W/m·Ksourcebase material: 5052 in O temper (same alloy, annealed); Kaiser typical	96.2W/m·Ksourcetypical at 68 °F
Thermal expansion	23.8µm/m·Ksourcetypical, mean 20-100 °C	21.8µm/m·Ksourcetypical, 68-572 °F (20-300 °C)
100 mm part over a 50 °C swing	119µm growth	109µm growth9% less
Specific heat	963J/kg·Ksourceat 100 °C (212 °F); table covers O, H32, H34, H36, H38	963J/kg·Ksourcetypical at 68 °F
Heats up and cools (diffusivity)	53.4mm²/s45% faster	36.8mm²/s
Thermal shock resistance	10,822W/m	not sourced
Melting point	605–650°Csourcemelting range	not sourced
Values for	5052-H32, Kaiser Aluminum tube & pipe typical datasheet (mechanical, CTE, melting); MIL-HDBK-5J (Poisson, density, specific heat)	A380 aluminium high-pressure die-casting alloy, typical properties; Rheocast Company (aluminium die caster, Germantown WI) A380 alloy data page.

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 5052-H32 stronger than Aluminum A380?

Aluminum 5052-H32 is stronger: its yield strength is 195 MPa against 160 MPa for Aluminum A380 (22%).

Which is lighter, Aluminum 5052-H32 or Aluminum A380?

Aluminum 5052-H32 is lighter: 2,685 kg/m³ against 2,713 kg/m³ for Aluminum A380.

Which is stiffer, Aluminum 5052-H32 or Aluminum A380?

Aluminum A380 is stiffer: Young's modulus 71 GPa against 70 GPa for Aluminum 5052-H32, so the same part in Aluminum A380 deflects less under the same load.

Which is lighter for the same job, Aluminum 5052-H32 or Aluminum A380?

For the same stiffness or strength: Aluminum 5052-H32 is lighter for a strong rod or tie, strong beam, strong panel or plate.

Part that must be	Aluminum 5052-H32	Aluminum A380
Stiff rod or tie (tension)	about equal	about equal
Stiff beam (bending)	about equal	about equal
Stiff panel or plate	about equal	about equal
Strong rod or tie	lighter	23% heavier
Strong beam	lighter	15% heavier
Strong panel or plate	lighter	12% heavier

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 5052-H32 or Aluminum A380?

Aluminum 5052-H32 stretches further before it breaks: 12% elongation at break against 3.5% for Aluminum A380.

Which conducts heat better, Aluminum 5052-H32 or Aluminum A380?

Aluminum 5052-H32 conducts heat better: 138 W/m·K against 96.2 W/m·K for Aluminum A380.

Which expands less with temperature?

Aluminum A380 expands less: 21.8 µm/m·K against 23.8 µm/m·K for Aluminum 5052-H32.

Among 72 materials

Stiffness against density

Strength against density