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2124 Aluminum vs. 6023 Aluminum

Both 2124 aluminum and 6023 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 2124 aluminum and the bottom bar is 6023 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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