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4004 Aluminum vs. 7049 Aluminum

Both 4004 aluminum and 7049 aluminum are aluminum alloys. They have 90% 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 4004 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, % 2.4
6.2 to 7.0
Fatigue Strength, MPa 42
160 to 170
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
27
Shear Strength, MPa 63
300 to 310
Tensile Strength: Ultimate (UTS), MPa 110
510 to 530
Tensile Strength: Yield (Proof), MPa 60
420 to 450

Thermal Properties

Latent Heat of Fusion, J/g 540
370
Maximum Temperature: Mechanical, °C 160
180
Melting Completion (Liquidus), °C 600
640
Melting Onset (Solidus), °C 560
480
Specific Heat Capacity, J/kg-K 910
860
Thermal Conductivity, W/m-K 130
130
Thermal Expansion, µm/m-K 22
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
36
Electrical Conductivity: Equal Weight (Specific), % IACS 120
110

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Density, g/cm3 2.6
3.1
Embodied Carbon, kg CO2/kg material 8.0
8.1
Embodied Energy, MJ/kg 150
140
Embodied Water, L/kg 1070
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.3
31 to 34
Resilience: Unit (Modulus of Resilience), kJ/m3 25
1270 to 1440
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 54
45
Strength to Weight: Axial, points 12
46 to 47
Strength to Weight: Bending, points 20
46 to 47
Thermal Diffusivity, mm2/s 58
51
Thermal Shock Resistance, points 5.1
22 to 23

Alloy Composition


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Aluminum (Al), % 86 to 90
85.7 to 89.5
Chromium (Cr), % 0
0.1 to 0.22
Copper (Cu), % 0 to 0.25
1.2 to 1.9
Iron (Fe), % 0 to 0.8
0 to 0.35
Magnesium (Mg), % 1.0 to 2.0
2.0 to 2.9
Manganese (Mn), % 0 to 0.1
0 to 0.2
Silicon (Si), % 9.0 to 10.5
0 to 0.25
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0 to 0.2
7.2 to 8.2
Residuals, % 0 to 0.15
0 to 0.15