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7022 Aluminum vs. A357.0 Aluminum

Both 7022 aluminum and A357.0 aluminum are aluminum alloys. They have a moderately high 91% of their average alloy composition in common. There are 30 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 7022 aluminum and the bottom bar is A357.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
70
Elongation at Break, % 6.3 to 8.0
3.7
Fatigue Strength, MPa 140 to 170
100
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 290 to 320
240
Tensile Strength: Ultimate (UTS), MPa 490 to 540
350
Tensile Strength: Yield (Proof), MPa 390 to 460
270

Thermal Properties

Latent Heat of Fusion, J/g 380
500
Maximum Temperature: Mechanical, °C 200
170
Melting Completion (Liquidus), °C 640
610
Melting Onset (Solidus), °C 480
560
Specific Heat Capacity, J/kg-K 870
900
Thermal Conductivity, W/m-K 140
160
Thermal Expansion, µm/m-K 24
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 21
40
Electrical Conductivity: Equal Weight (Specific), % IACS 65
140

Otherwise Unclassified Properties

Base Metal Price, % relative 10
12
Density, g/cm3 2.9
2.6
Embodied Carbon, kg CO2/kg material 8.5
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1130
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29 to 40
12
Resilience: Unit (Modulus of Resilience), kJ/m3 1100 to 1500
520
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 47
53
Strength to Weight: Axial, points 47 to 51
38
Strength to Weight: Bending, points 47 to 50
43
Thermal Diffusivity, mm2/s 54
68
Thermal Shock Resistance, points 21 to 23
17

Alloy Composition

Aluminum (Al), % 87.9 to 92.4
90.8 to 93
Beryllium (Be), % 0
0.040 to 0.070
Chromium (Cr), % 0.1 to 0.3
0
Copper (Cu), % 0.5 to 1.0
0 to 0.2
Iron (Fe), % 0 to 0.5
0 to 0.2
Magnesium (Mg), % 2.6 to 3.7
0.4 to 0.7
Manganese (Mn), % 0.1 to 0.4
0 to 0.1
Silicon (Si), % 0 to 0.5
6.5 to 7.5
Titanium (Ti), % 0 to 0.2
0.040 to 0.2
Zinc (Zn), % 4.3 to 5.2
0 to 0.1
Zirconium (Zr), % 0 to 0.2
0
Residuals, % 0
0 to 0.15