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6023 Aluminum vs. 2124 Aluminum

Both 6023 aluminum and 2124 aluminum are aluminum alloys. They have a moderately high 95% of their average alloy composition in common.

For each property being compared, the top bar is 6023 aluminum and the bottom bar is 2124 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
71
Elongation at Break, % 11
5.7
Fatigue Strength, MPa 120 to 130
130
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
27
Shear Strength, MPa 210 to 220
280
Tensile Strength: Ultimate (UTS), MPa 360
490
Tensile Strength: Yield (Proof), MPa 300 to 310
430

Thermal Properties

Latent Heat of Fusion, J/g 400
390
Maximum Temperature: Mechanical, °C 160
190
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 580
500
Specific Heat Capacity, J/kg-K 890
880
Thermal Conductivity, W/m-K 170
150
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
38
Electrical Conductivity: Equal Weight (Specific), % IACS 140
110

Otherwise Unclassified Properties

Base Metal Price, % relative 11
10
Density, g/cm3 2.8
3.0
Embodied Carbon, kg CO2/kg material 8.3
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 39
27
Resilience: Unit (Modulus of Resilience), kJ/m3 670 to 690
1290
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
46
Strength to Weight: Axial, points 35 to 36
45
Strength to Weight: Bending, points 40
46
Thermal Diffusivity, mm2/s 67
58
Thermal Shock Resistance, points 16
21

Alloy Composition

Aluminum (Al), % 94 to 97.7
91.3 to 94.7
Bismuth (Bi), % 0.3 to 0.8
0
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0.2 to 0.5
3.8 to 4.9
Iron (Fe), % 0 to 0.5
0 to 0.3
Magnesium (Mg), % 0.4 to 0.9
1.2 to 1.8
Manganese (Mn), % 0.2 to 0.6
0.3 to 0.9
Silicon (Si), % 0.6 to 1.4
0 to 0.2
Tin (Sn), % 0.6 to 1.2
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15