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4004 Aluminum vs. 2618A Aluminum

Both 4004 aluminum and 2618A aluminum are aluminum alloys. They have a moderately high 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 (1, in this case) are not shown.

For each property being compared, the top bar is 4004 aluminum and the bottom bar is 2618A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
72
Elongation at Break, % 2.4
4.5
Fatigue Strength, MPa 42
120
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
27
Shear Strength, MPa 63
260
Tensile Strength: Ultimate (UTS), MPa 110
440
Tensile Strength: Yield (Proof), MPa 60
410

Thermal Properties

Latent Heat of Fusion, J/g 540
390
Maximum Temperature: Mechanical, °C 160
230
Melting Completion (Liquidus), °C 600
670
Melting Onset (Solidus), °C 560
560
Specific Heat Capacity, J/kg-K 910
880
Thermal Conductivity, W/m-K 130
150
Thermal Expansion, µm/m-K 22
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
37
Electrical Conductivity: Equal Weight (Specific), % IACS 120
110

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
11
Density, g/cm3 2.6
3.0
Embodied Carbon, kg CO2/kg material 8.0
8.4
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1070
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.3
19
Resilience: Unit (Modulus of Resilience), kJ/m3 25
1180
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 54
47
Strength to Weight: Axial, points 12
41
Strength to Weight: Bending, points 20
44
Thermal Diffusivity, mm2/s 58
59
Thermal Shock Resistance, points 5.1
19

Alloy Composition


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Aluminum (Al), % 86 to 90
91.5 to 95.2
Copper (Cu), % 0 to 0.25
1.8 to 2.7
Iron (Fe), % 0 to 0.8
0.9 to 1.4
Magnesium (Mg), % 1.0 to 2.0
1.2 to 1.8
Manganese (Mn), % 0 to 0.1
0 to 0.25
Nickel (Ni), % 0
0.8 to 1.4
Silicon (Si), % 9.0 to 10.5
0.15 to 0.25
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0 to 0.2
0 to 0.15
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0 to 0.15
0 to 0.15