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QE22A Magnesium vs. 5070 Aluminum

QE22A magnesium belongs to the magnesium alloys classification, while 5070 aluminum belongs to the aluminum 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 QE22A magnesium and the bottom bar is 5070 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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