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6070 Aluminum vs. 2124 Aluminum

Both 6070 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 6070 aluminum and the bottom bar is 2124 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
71
Elongation at Break, % 5.6 to 8.6
5.7
Fatigue Strength, MPa 95 to 130
130
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
27
Shear Strength, MPa 220 to 240
280
Tensile Strength: Ultimate (UTS), MPa 370 to 380
490
Tensile Strength: Yield (Proof), MPa 350
430

Thermal Properties

Latent Heat of Fusion, J/g 410
390
Maximum Temperature: Mechanical, °C 160
190
Melting Completion (Liquidus), °C 650
640
Melting Onset (Solidus), °C 570
500
Specific Heat Capacity, J/kg-K 900
880
Thermal Conductivity, W/m-K 160
150
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 41
38
Electrical Conductivity: Equal Weight (Specific), % IACS 140
110

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Density, g/cm3 2.7
3.0
Embodied Carbon, kg CO2/kg material 8.3
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1170
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 32
27
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 900
1290
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
46
Strength to Weight: Axial, points 38
45
Strength to Weight: Bending, points 42 to 43
46
Thermal Diffusivity, mm2/s 65
58
Thermal Shock Resistance, points 16 to 17
21

Alloy Composition

Aluminum (Al), % 94.6 to 98
91.3 to 94.7
Chromium (Cr), % 0 to 0.1
0 to 0.1
Copper (Cu), % 0.15 to 0.4
3.8 to 4.9
Iron (Fe), % 0 to 0.5
0 to 0.3
Magnesium (Mg), % 0.5 to 1.2
1.2 to 1.8
Manganese (Mn), % 0.4 to 1.0
0.3 to 0.9
Silicon (Si), % 1.0 to 1.7
0 to 0.2
Titanium (Ti), % 0 to 0.15
0 to 0.15
Zinc (Zn), % 0 to 0.25
0 to 0.25
Residuals, % 0
0 to 0.15