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2024 Aluminum vs. 7049 Aluminum

Both 2024 aluminum and 7049 aluminum are aluminum alloys. They have a moderately high 91% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is 2024 aluminum and the bottom bar is 7049 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
70
Elongation at Break, % 4.0 to 16
6.2 to 7.0
Fatigue Strength, MPa 90 to 180
160 to 170
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
27
Shear Strength, MPa 130 to 320
300 to 310
Tensile Strength: Ultimate (UTS), MPa 200 to 540
510 to 530
Tensile Strength: Yield (Proof), MPa 100 to 490
420 to 450

Thermal Properties

Latent Heat of Fusion, J/g 390
370
Maximum Temperature: Mechanical, °C 200
180
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 500
480
Specific Heat Capacity, J/kg-K 880
860
Thermal Conductivity, W/m-K 120
130
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
36
Electrical Conductivity: Equal Weight (Specific), % IACS 90
110

Otherwise Unclassified Properties

Base Metal Price, % relative 11
10
Density, g/cm3 3.0
3.1
Embodied Carbon, kg CO2/kg material 8.3
8.1
Embodied Energy, MJ/kg 150
140
Embodied Water, L/kg 1140
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 68
31 to 34
Resilience: Unit (Modulus of Resilience), kJ/m3 70 to 1680
1270 to 1440
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
45
Strength to Weight: Axial, points 18 to 50
46 to 47
Strength to Weight: Bending, points 25 to 49
46 to 47
Thermal Diffusivity, mm2/s 46
51
Thermal Shock Resistance, points 8.6 to 24
22 to 23

Alloy Composition

Aluminum (Al), % 90.7 to 94.7
85.7 to 89.5
Chromium (Cr), % 0 to 0.1
0.1 to 0.22
Copper (Cu), % 3.8 to 4.9
1.2 to 1.9
Iron (Fe), % 0 to 0.5
0 to 0.35
Magnesium (Mg), % 1.2 to 1.8
2.0 to 2.9
Manganese (Mn), % 0.3 to 0.9
0 to 0.2
Silicon (Si), % 0 to 0.5
0 to 0.25
Titanium (Ti), % 0 to 0.15
0 to 0.1
Zinc (Zn), % 0 to 0.25
7.2 to 8.2
Zirconium (Zr), % 0 to 0.2
0
Residuals, % 0
0 to 0.15