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7021 Aluminum vs. 201.0 Aluminum

Both 7021 aluminum and 201.0 aluminum are aluminum alloys. They have a moderately high 93% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is 7021 aluminum and the bottom bar is 201.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
71
Elongation at Break, % 9.4
4.4 to 20
Fatigue Strength, MPa 150
120 to 150
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 26
27
Shear Strength, MPa 270
290
Tensile Strength: Ultimate (UTS), MPa 460
370 to 470
Tensile Strength: Yield (Proof), MPa 390
220 to 400

Thermal Properties

Latent Heat of Fusion, J/g 380
390
Maximum Temperature: Mechanical, °C 200
170
Melting Completion (Liquidus), °C 630
650
Melting Onset (Solidus), °C 510
570
Specific Heat Capacity, J/kg-K 870
870
Thermal Conductivity, W/m-K 150
120
Thermal Expansion, µm/m-K 24
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
30 to 33
Electrical Conductivity: Equal Weight (Specific), % IACS 120
87 to 97

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
38
Density, g/cm3 2.9
3.1
Embodied Carbon, kg CO2/kg material 8.3
8.7
Embodied Energy, MJ/kg 150
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 41
19 to 63
Resilience: Unit (Modulus of Resilience), kJ/m3 1110
330 to 1160
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
45
Strength to Weight: Axial, points 44
33 to 42
Strength to Weight: Bending, points 45
37 to 44
Thermal Diffusivity, mm2/s 59
45
Thermal Shock Resistance, points 20
19 to 25

Alloy Composition


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Aluminum (Al), % 90.7 to 93.7
92.1 to 95.1
Chromium (Cr), % 0 to 0.050
0
Copper (Cu), % 0 to 0.25
4.0 to 5.2
Iron (Fe), % 0 to 0.4
0 to 0.15
Magnesium (Mg), % 1.2 to 1.8
0.15 to 0.55
Manganese (Mn), % 0 to 0.1
0.2 to 0.5
Silicon (Si), % 0 to 0.25
0 to 0.1
Silver (Ag), % 0
0.4 to 1.0
Titanium (Ti), % 0 to 0.1
0.15 to 0.35
Zinc (Zn), % 5.0 to 6.0
0
Zirconium (Zr), % 0.080 to 0.18
0
Residuals, % 0 to 0.15
0 to 0.1