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7021 Aluminum vs. EN AC-46100 Aluminum

Both 7021 aluminum and EN AC-46100 aluminum are aluminum alloys. They have 86% of their average alloy composition in common. There are 29 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 7021 aluminum and the bottom bar is EN AC-46100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
73
Elongation at Break, % 9.4
1.0
Fatigue Strength, MPa 150
110
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 26
28
Tensile Strength: Ultimate (UTS), MPa 460
270
Tensile Strength: Yield (Proof), MPa 390
160

Thermal Properties

Latent Heat of Fusion, J/g 380
550
Maximum Temperature: Mechanical, °C 200
180
Melting Completion (Liquidus), °C 630
600
Melting Onset (Solidus), °C 510
540
Specific Heat Capacity, J/kg-K 870
890
Thermal Conductivity, W/m-K 150
110
Thermal Expansion, µm/m-K 24
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
28
Electrical Conductivity: Equal Weight (Specific), % IACS 120
90

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Density, g/cm3 2.9
2.7
Embodied Carbon, kg CO2/kg material 8.3
7.6
Embodied Energy, MJ/kg 150
140
Embodied Water, L/kg 1140
1030

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 41
2.3
Resilience: Unit (Modulus of Resilience), kJ/m3 1110
170
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 47
51
Strength to Weight: Axial, points 44
27
Strength to Weight: Bending, points 45
34
Thermal Diffusivity, mm2/s 59
44
Thermal Shock Resistance, points 20
12

Alloy Composition


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Aluminum (Al), % 90.7 to 93.7
80.4 to 88.5
Chromium (Cr), % 0 to 0.050
0 to 0.15
Copper (Cu), % 0 to 0.25
1.5 to 2.5
Iron (Fe), % 0 to 0.4
0 to 1.1
Lead (Pb), % 0
0 to 0.25
Magnesium (Mg), % 1.2 to 1.8
0 to 0.3
Manganese (Mn), % 0 to 0.1
0 to 0.55
Nickel (Ni), % 0
0 to 0.45
Silicon (Si), % 0 to 0.25
10 to 12
Tin (Sn), % 0
0 to 0.15
Titanium (Ti), % 0 to 0.1
0 to 0.25
Zinc (Zn), % 5.0 to 6.0
0 to 1.7
Zirconium (Zr), % 0.080 to 0.18
0
Residuals, % 0 to 0.15
0 to 0.25