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2024 Aluminum vs. 7075 Aluminum

Both 2024 aluminum and 7075 aluminum are aluminum alloys. They have a moderately high 93% of their average alloy composition in common.

For each property being compared, the top bar is 2024 aluminum and the bottom bar is 7075 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
70
Elongation at Break, % 4.0 to 16
1.8 to 12
Fatigue Strength, MPa 90 to 180
110 to 190
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
26
Shear Strength, MPa 130 to 320
150 to 340
Tensile Strength: Ultimate (UTS), MPa 200 to 540
240 to 590
Tensile Strength: Yield (Proof), MPa 100 to 490
120 to 510

Thermal Properties

Latent Heat of Fusion, J/g 390
380
Maximum Temperature: Mechanical, °C 200
200
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 500
480
Specific Heat Capacity, J/kg-K 880
870
Thermal Conductivity, W/m-K 120
130
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
33
Electrical Conductivity: Equal Weight (Specific), % IACS 90
98

Otherwise Unclassified Properties

Base Metal Price, % relative 11
10
Calomel Potential, mV -600
-750
Density, g/cm3 3.0
3.0
Embodied Carbon, kg CO2/kg material 8.3
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1140
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 68
7.8 to 44
Resilience: Unit (Modulus of Resilience), kJ/m3 70 to 1680
110 to 1870
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
46
Strength to Weight: Axial, points 18 to 50
22 to 54
Strength to Weight: Bending, points 25 to 49
28 to 52
Thermal Diffusivity, mm2/s 46
50
Thermal Shock Resistance, points 8.6 to 24
10 to 25

Alloy Composition

Aluminum (Al), % 90.7 to 94.7
86.9 to 91.4
Chromium (Cr), % 0 to 0.1
0.18 to 0.28
Copper (Cu), % 3.8 to 4.9
1.2 to 2.0
Iron (Fe), % 0 to 0.5
0 to 0.5
Magnesium (Mg), % 1.2 to 1.8
2.1 to 2.9
Manganese (Mn), % 0.3 to 0.9
0 to 0.3
Silicon (Si), % 0 to 0.5
0 to 0.4
Titanium (Ti), % 0 to 0.15
0 to 0.2
Zinc (Zn), % 0 to 0.25
5.1 to 6.1
Zirconium (Zr), % 0 to 0.2
0 to 0.25
Residuals, % 0 to 0.15
0 to 0.15

Comparable Variants