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7005 Aluminum vs. 2018 Aluminum

Both 7005 aluminum and 2018 aluminum are aluminum alloys. They have a moderately high 94% 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 7005 aluminum and the bottom bar is 2018 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
73
Elongation at Break, % 10 to 20
9.6
Fatigue Strength, MPa 100 to 190
120
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
27
Shear Strength, MPa 120 to 230
270
Tensile Strength: Ultimate (UTS), MPa 200 to 400
420
Tensile Strength: Yield (Proof), MPa 95 to 350
310

Thermal Properties

Latent Heat of Fusion, J/g 380
390
Maximum Temperature: Mechanical, °C 200
220
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 610
510
Specific Heat Capacity, J/kg-K 880
870
Thermal Conductivity, W/m-K 140 to 170
150
Thermal Expansion, µm/m-K 23
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35 to 43
40
Electrical Conductivity: Equal Weight (Specific), % IACS 110 to 130
120

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
11
Density, g/cm3 2.9
3.1
Embodied Carbon, kg CO2/kg material 8.3
8.1
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 32 to 57
37
Resilience: Unit (Modulus of Resilience), kJ/m3 65 to 850
670
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
45
Strength to Weight: Axial, points 19 to 38
38
Strength to Weight: Bending, points 26 to 41
41
Thermal Diffusivity, mm2/s 54 to 65
57
Thermal Shock Resistance, points 8.7 to 18
19

Alloy Composition

Aluminum (Al), % 91 to 94.7
89.7 to 94.4
Chromium (Cr), % 0.060 to 0.2
0 to 0.1
Copper (Cu), % 0 to 0.1
3.5 to 4.5
Iron (Fe), % 0 to 0.4
0 to 1.0
Magnesium (Mg), % 1.0 to 1.8
0.45 to 0.9
Manganese (Mn), % 0.2 to 0.7
0 to 0.2
Nickel (Ni), % 0
1.7 to 2.3
Silicon (Si), % 0 to 0.35
0 to 0.9
Titanium (Ti), % 0.010 to 0.060
0
Zinc (Zn), % 4.0 to 5.0
0 to 0.25
Zirconium (Zr), % 0.080 to 0.2
0
Residuals, % 0
0 to 0.15