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7021 Aluminum vs. EN AC-43300 Aluminum

Both 7021 aluminum and EN AC-43300 aluminum are aluminum alloys. They have a moderately high 91% 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-43300 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
71
Elongation at Break, % 9.4
3.4 to 6.7
Fatigue Strength, MPa 150
76 to 77
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 26
27
Tensile Strength: Ultimate (UTS), MPa 460
280 to 290
Tensile Strength: Yield (Proof), MPa 390
210 to 230

Thermal Properties

Latent Heat of Fusion, J/g 380
540
Maximum Temperature: Mechanical, °C 200
170
Melting Completion (Liquidus), °C 630
600
Melting Onset (Solidus), °C 510
590
Specific Heat Capacity, J/kg-K 870
910
Thermal Conductivity, W/m-K 150
140
Thermal Expansion, µm/m-K 24
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
40
Electrical Conductivity: Equal Weight (Specific), % IACS 120
140

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.9
2.5
Embodied Carbon, kg CO2/kg material 8.3
7.9
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1140
1080

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 41
9.1 to 17
Resilience: Unit (Modulus of Resilience), kJ/m3 1110
300 to 370
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 47
54
Strength to Weight: Axial, points 44
31 to 32
Strength to Weight: Bending, points 45
37 to 38
Thermal Diffusivity, mm2/s 59
59
Thermal Shock Resistance, points 20
13 to 14

Alloy Composition


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Aluminum (Al), % 90.7 to 93.7
88.9 to 90.8
Chromium (Cr), % 0 to 0.050
0
Copper (Cu), % 0 to 0.25
0 to 0.050
Iron (Fe), % 0 to 0.4
0 to 0.19
Magnesium (Mg), % 1.2 to 1.8
0.25 to 0.45
Manganese (Mn), % 0 to 0.1
0 to 0.1
Silicon (Si), % 0 to 0.25
9.0 to 10
Titanium (Ti), % 0 to 0.1
0 to 0.15
Zinc (Zn), % 5.0 to 6.0
0 to 0.070
Zirconium (Zr), % 0.080 to 0.18
0
Residuals, % 0 to 0.15
0 to 0.1