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4004 Aluminum vs. 7108 Aluminum

Both 4004 aluminum and 7108 aluminum are aluminum alloys. They have 89% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is 4004 aluminum and the bottom bar is 7108 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
69
Elongation at Break, % 2.4
11
Fatigue Strength, MPa 42
120
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
26
Shear Strength, MPa 63
210
Tensile Strength: Ultimate (UTS), MPa 110
350
Tensile Strength: Yield (Proof), MPa 60
290

Thermal Properties

Latent Heat of Fusion, J/g 540
380
Maximum Temperature: Mechanical, °C 160
210
Melting Completion (Liquidus), °C 600
630
Melting Onset (Solidus), °C 560
530
Specific Heat Capacity, J/kg-K 910
880
Thermal Conductivity, W/m-K 130
150
Thermal Expansion, µm/m-K 22
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
39
Electrical Conductivity: Equal Weight (Specific), % IACS 120
120

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.6
2.9
Embodied Carbon, kg CO2/kg material 8.0
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1070
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.3
38
Resilience: Unit (Modulus of Resilience), kJ/m3 25
620
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 54
47
Strength to Weight: Axial, points 12
34
Strength to Weight: Bending, points 20
38
Thermal Diffusivity, mm2/s 58
59
Thermal Shock Resistance, points 5.1
16

Alloy Composition


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Aluminum (Al), % 86 to 90
92.4 to 94.7
Copper (Cu), % 0 to 0.25
0 to 0.050
Iron (Fe), % 0 to 0.8
0 to 0.1
Magnesium (Mg), % 1.0 to 2.0
0.7 to 1.4
Manganese (Mn), % 0 to 0.1
0 to 0.050
Silicon (Si), % 9.0 to 10.5
0 to 0.1
Titanium (Ti), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.2
4.5 to 5.5
Zirconium (Zr), % 0
0.12 to 0.25
Residuals, % 0 to 0.15
0 to 0.15