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1050A Aluminum vs. 7020 Aluminum

Both 1050A aluminum and 7020 aluminum are aluminum alloys. They have a moderately high 93% of their average alloy composition in common.

For each property being compared, the top bar is 1050A aluminum and the bottom bar is 7020 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 20 to 45
45 to 100
Elastic (Young's, Tensile) Modulus, GPa 68
70
Elongation at Break, % 1.1 to 33
8.4 to 14
Fatigue Strength, MPa 22 to 55
110 to 130
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 44 to 97
110 to 230
Tensile Strength: Ultimate (UTS), MPa 68 to 170
190 to 390
Tensile Strength: Yield (Proof), MPa 22 to 150
120 to 310

Thermal Properties

Latent Heat of Fusion, J/g 400
380
Maximum Temperature: Mechanical, °C 170
210
Melting Completion (Liquidus), °C 660
650
Melting Onset (Solidus), °C 650
610
Specific Heat Capacity, J/kg-K 900
880
Thermal Conductivity, W/m-K 230
150
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 59
39
Electrical Conductivity: Equal Weight (Specific), % IACS 200
120

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
9.5
Density, g/cm3 2.7
2.9
Embodied Carbon, kg CO2/kg material 8.2
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1200
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.9 to 19
23 to 46
Resilience: Unit (Modulus of Resilience), kJ/m3 3.7 to 160
110 to 690
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
47
Strength to Weight: Axial, points 6.9 to 18
18 to 37
Strength to Weight: Bending, points 14 to 25
25 to 41
Thermal Diffusivity, mm2/s 94
59
Thermal Shock Resistance, points 3.0 to 7.6
8.3 to 17

Alloy Composition

Aluminum (Al), % 99.5 to 100
91.2 to 94.8
Chromium (Cr), % 0
0.1 to 0.35
Copper (Cu), % 0 to 0.050
0 to 0.2
Iron (Fe), % 0 to 0.4
0 to 0.4
Magnesium (Mg), % 0 to 0.050
1.0 to 1.4
Manganese (Mn), % 0 to 0.050
0.050 to 0.5
Silicon (Si), % 0 to 0.25
0 to 0.35
Titanium (Ti), % 0 to 0.050
0 to 0.25
Zinc (Zn), % 0 to 0.070
4.0 to 5.0
Zirconium (Zr), % 0
0.080 to 0.25
Residuals, % 0
0 to 0.15

Comparable Variants