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5182 Aluminum vs. 2124 Aluminum

Both 5182 aluminum and 2124 aluminum are aluminum alloys. They have a very high 95% of their average alloy composition in common.

For each property being compared, the top bar is 5182 aluminum and the bottom bar is 2124 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
71
Elongation at Break, % 1.1 to 12
5.7
Fatigue Strength, MPa 100 to 130
130
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 25
27
Shear Strength, MPa 170 to 240
280
Tensile Strength: Ultimate (UTS), MPa 280 to 420
490
Tensile Strength: Yield (Proof), MPa 130 to 360
430

Thermal Properties

Latent Heat of Fusion, J/g 390
390
Maximum Temperature: Mechanical, °C 180
190
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 590
500
Specific Heat Capacity, J/kg-K 900
880
Thermal Conductivity, W/m-K 130
150
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
38
Electrical Conductivity: Equal Weight (Specific), % IACS 94
110

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Density, g/cm3 2.7
3.0
Embodied Carbon, kg CO2/kg material 8.9
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6 to 49
27
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 950
1290
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
46
Strength to Weight: Axial, points 29 to 44
45
Strength to Weight: Bending, points 36 to 47
46
Thermal Diffusivity, mm2/s 53
58
Thermal Shock Resistance, points 12 to 19
21

Alloy Composition

Aluminum (Al), % 93.2 to 95.8
91.3 to 94.7
Chromium (Cr), % 0 to 0.1
0 to 0.1
Copper (Cu), % 0 to 0.15
3.8 to 4.9
Iron (Fe), % 0 to 0.35
0 to 0.3
Magnesium (Mg), % 4.0 to 5.0
1.2 to 1.8
Manganese (Mn), % 0.2 to 0.5
0.3 to 0.9
Silicon (Si), % 0 to 0.2
0 to 0.2
Titanium (Ti), % 0 to 0.1
0 to 0.15
Zinc (Zn), % 0 to 0.25
0 to 0.25
Residuals, % 0 to 0.15
0 to 0.15