Aluminum 2024-T351

Aluminum 2024-T351 (plate) strength, stiffness, density and thermal properties, with their source.

A bracket in Aluminum 2024-T351, brushed finish.

Mechanical
Yield strength	324MPa1
Ultimate tensile strength	469MPa1
Elongation at break	19%1
Young's modulus (stiffness)	73.1GPa1
Density	2,770kg/m³1
Strength to weight	117kN·m/kg
Stiffness to weight	26.4MN·m/kg
Poisson's ratio	0.332
Shear modulus	27.5GPa
Bulk modulus	71.7GPa
Speed of sound	5,137m/s

Stiffness against densityHigher and further left: stiffer for its weight

Strength against densityHigher and further left: stronger for its weight

Thermal
Thermal conductivity	120W/m·K1
Thermal expansion	22.9µm/m·K1
100 mm part over a 50 °C swing	115µm growth
Specific heat	875J/kg·K1
Heats up and cools (diffusivity)	49.5mm²/s
Thermal shock resistance	15,561W/m
Melting point	melting range502–638°C1

Thermal conductivity against densityHigher and further left: spreads more heat for its weight

Thermal expansion against thermal conductivityLower and further right: warps less when heated

Sources2 documents: Kaiser Aluminum, U.S. Department of Defense

Values for: Wrought. 2024-T4/T351, Kaiser Aluminum sheet, coil & plate typical datasheet; Poisson from MIL-HDBK-5J

1
Alloy 2024 Sheet, Coil & Plate Technical DataKaiser Aluminumarchived copyYield strength: typical, 0.2% offset, .500 in dia specimenUltimate tensile strength: typicalElongation at break: typical, in 4DYoung's modulus (stiffness): typicalDensity: nominalThermal conductivity: typical, 20 °CThermal expansion: typical, mean 20-100 °CSpecific heat: typical, at 100 °CMelting point: melting range
2
MIL-HDBK-5J, Metallic Materials and Elements for Aerospace Vehicle Structures (2003)U.S. Department of DefensePoisson's ratio: typical (handbook physical constant), all tempers

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Thermal properties of Aluminum 2024-T351

Thermal conductivity of Aluminum 2024-T351

Aluminum 2024-T351 has a thermal conductivity of 120 W/m·K (69.3 BTU/hr·ft·°F). Basis: typical, 20 °C. Source: Kaiser Aluminum, Alloy 2024 Sheet, Coil & Plate Technical Dataarchived copy.

Specific heat of Aluminum 2024-T351

The specific heat capacity of Aluminum 2024-T351 is 875 J/kg·K (0.209 BTU/lb·°F). Basis: typical, at 100 °C. Source: Kaiser Aluminum, Alloy 2024 Sheet, Coil & Plate Technical Dataarchived copy.

Coefficient of thermal expansion of Aluminum 2024-T351

Aluminum 2024-T351 expands 22.9 µm/m·K (12.7 µin/in·°F): a 100 mm part grows 115 µm over a 50 °C rise. Basis: typical, mean 20-100 °C. Source: Kaiser Aluminum, Alloy 2024 Sheet, Coil & Plate Technical Dataarchived copy.

Thermal diffusivity of Aluminum 2024-T351

Computed from the conductivity, density and specific heat (k / ρc): 49.5 mm²/s, how fast a temperature change spreads through it.

Melting point of Aluminum 2024-T351

Aluminum 2024-T351 melts at 502–638 °C (936–1,180 °F). Basis: melting range. Source: Kaiser Aluminum, Alloy 2024 Sheet, Coil & Plate Technical Dataarchived copy.