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2124 Aluminum vs. 6012 Aluminum

Both 2124 aluminum and 6012 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 2124 aluminum and the bottom bar is 6012 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
69
Elongation at Break, % 5.7
9.1 to 11
Fatigue Strength, MPa 130
55 to 100
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
26
Shear Strength, MPa 280
130 to 190
Tensile Strength: Ultimate (UTS), MPa 490
220 to 320
Tensile Strength: Yield (Proof), MPa 430
110 to 260

Thermal Properties

Latent Heat of Fusion, J/g 390
400
Maximum Temperature: Mechanical, °C 190
170
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 500
570
Specific Heat Capacity, J/kg-K 880
890
Thermal Conductivity, W/m-K 150
160
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
9.5
Density, g/cm3 3.0
2.9
Embodied Carbon, kg CO2/kg material 8.2
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
21 to 28
Resilience: Unit (Modulus of Resilience), kJ/m3 1290
94 to 480
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
48
Strength to Weight: Axial, points 45
22 to 32
Strength to Weight: Bending, points 46
29 to 37
Thermal Diffusivity, mm2/s 58
62
Thermal Shock Resistance, points 21
10 to 14

Alloy Composition

Aluminum (Al), % 91.3 to 94.7
92.2 to 98
Bismuth (Bi), % 0
0 to 0.7
Chromium (Cr), % 0 to 0.1
0 to 0.3
Copper (Cu), % 3.8 to 4.9
0 to 0.1
Iron (Fe), % 0 to 0.3
0 to 0.5
Lead (Pb), % 0
0.4 to 2.0
Magnesium (Mg), % 1.2 to 1.8
0.6 to 1.2
Manganese (Mn), % 0.3 to 0.9
0.4 to 1.0
Silicon (Si), % 0 to 0.2
0.6 to 1.4
Titanium (Ti), % 0 to 0.15
0 to 0.2
Zinc (Zn), % 0 to 0.25
0 to 0.3
Residuals, % 0
0 to 0.15