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7021 Aluminum vs. A201.0 Aluminum

Both 7021 aluminum and A201.0 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 (1, in this case) are not shown.

For each property being compared, the top bar is 7021 aluminum and the bottom bar is A201.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
71
Elongation at Break, % 9.4
4.7
Fatigue Strength, MPa 150
97
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 26
27
Tensile Strength: Ultimate (UTS), MPa 460
480
Tensile Strength: Yield (Proof), MPa 390
420

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
880
Thermal Conductivity, W/m-K 150
120
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
30
Electrical Conductivity: Equal Weight (Specific), % IACS 120
90

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
11
Density, g/cm3 2.9
3.0
Embodied Carbon, kg CO2/kg material 8.3
8.1
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1140
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 41
22
Resilience: Unit (Modulus of Resilience), kJ/m3 1110
1250
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
46
Strength to Weight: Axial, points 44
44
Strength to Weight: Bending, points 45
45
Thermal Diffusivity, mm2/s 59
46
Thermal Shock Resistance, points 20
21

Alloy Composition

Aluminum (Al), % 90.7 to 93.7
93.7 to 95.5
Chromium (Cr), % 0 to 0.050
0
Copper (Cu), % 0 to 0.25
4.0 to 5.0
Iron (Fe), % 0 to 0.4
0 to 0.1
Magnesium (Mg), % 1.2 to 1.8
0.15 to 0.35
Manganese (Mn), % 0 to 0.1
0.2 to 0.4
Silicon (Si), % 0 to 0.25
0 to 0.050
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
0 to 0.1