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5070 Aluminum vs. QE22A Magnesium

5070 aluminum belongs to the aluminum alloys classification, while QE22A magnesium belongs to the magnesium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is 5070 aluminum and the bottom bar is QE22A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
44
Elongation at Break, % 20
2.4
Fatigue Strength, MPa 150
110
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 190
150
Tensile Strength: Ultimate (UTS), MPa 300
250
Tensile Strength: Yield (Proof), MPa 140
190

Thermal Properties

Latent Heat of Fusion, J/g 390
340
Maximum Temperature: Mechanical, °C 190
250
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 550
570
Specific Heat Capacity, J/kg-K 900
970
Thermal Conductivity, W/m-K 130
110
Thermal Expansion, µm/m-K 24
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
25
Electrical Conductivity: Equal Weight (Specific), % IACS 100
120

Otherwise Unclassified Properties

Density, g/cm3 2.7
2.0
Embodied Carbon, kg CO2/kg material 8.8
27
Embodied Energy, MJ/kg 150
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 51
5.5
Resilience: Unit (Modulus of Resilience), kJ/m3 150
400
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
60
Strength to Weight: Axial, points 31
36
Strength to Weight: Bending, points 37
46
Thermal Diffusivity, mm2/s 53
59
Thermal Shock Resistance, points 14
15

Alloy Composition

Aluminum (Al), % 92.4 to 95.7
0
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.25
0 to 0.1
Iron (Fe), % 0 to 0.4
0
Magnesium (Mg), % 3.5 to 4.5
93.1 to 95.8
Manganese (Mn), % 0.4 to 0.8
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.25
0
Silver (Ag), % 0
2.0 to 3.0
Titanium (Ti), % 0 to 0.15
0
Unspecified Rare Earths, % 0
1.8 to 2.5
Zinc (Zn), % 0.4 to 0.8
0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3