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2618 Aluminum vs. 2124 Aluminum

Both 2618 aluminum and 2124 aluminum are aluminum alloys. They have a very high 97% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is 2618 aluminum and the bottom bar is 2124 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
71
Elongation at Break, % 5.8
5.7
Fatigue Strength, MPa 110
130
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
27
Shear Strength, MPa 260
280
Tensile Strength: Ultimate (UTS), MPa 420
490
Tensile Strength: Yield (Proof), MPa 350
430

Thermal Properties

Latent Heat of Fusion, J/g 390
390
Maximum Temperature: Mechanical, °C 210
190
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 550
500
Specific Heat Capacity, J/kg-K 880
880
Thermal Conductivity, W/m-K 160
150
Thermal Expansion, µm/m-K 22
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
38
Electrical Conductivity: Equal Weight (Specific), % IACS 110
110

Otherwise Unclassified Properties

Base Metal Price, % relative 11
10
Density, g/cm3 2.9
3.0
Embodied Carbon, kg CO2/kg material 8.3
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23
27
Resilience: Unit (Modulus of Resilience), kJ/m3 850
1290
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
46
Strength to Weight: Axial, points 40
45
Strength to Weight: Bending, points 42
46
Thermal Diffusivity, mm2/s 62
58
Thermal Shock Resistance, points 19
21

Alloy Composition

Aluminum (Al), % 92.4 to 94.9
91.3 to 94.7
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 1.9 to 2.7
3.8 to 4.9
Iron (Fe), % 0.9 to 1.3
0 to 0.3
Magnesium (Mg), % 1.3 to 1.8
1.2 to 1.8
Manganese (Mn), % 0
0.3 to 0.9
Nickel (Ni), % 0.9 to 1.2
0
Silicon (Si), % 0.1 to 0.25
0 to 0.2
Titanium (Ti), % 0.040 to 0.1
0 to 0.15
Zinc (Zn), % 0 to 0.1
0 to 0.25
Residuals, % 0
0 to 0.15