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390.0 Aluminum vs. QE22A Magnesium

390.0 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 390.0 aluminum and the bottom bar is QE22A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
80
Elastic (Young's, Tensile) Modulus, GPa 75
44
Elongation at Break, % 1.0
2.4
Fatigue Strength, MPa 76 to 110
110
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
17
Tensile Strength: Ultimate (UTS), MPa 280 to 300
250
Tensile Strength: Yield (Proof), MPa 240 to 270
190

Thermal Properties

Latent Heat of Fusion, J/g 640
340
Maximum Temperature: Mechanical, °C 170
250
Melting Completion (Liquidus), °C 650
640
Melting Onset (Solidus), °C 560
570
Specific Heat Capacity, J/kg-K 880
970
Thermal Conductivity, W/m-K 130
110
Thermal Expansion, µm/m-K 18
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24 to 25
25
Electrical Conductivity: Equal Weight (Specific), % IACS 79 to 83
120

Otherwise Unclassified Properties

Density, g/cm3 2.7
2.0
Embodied Carbon, kg CO2/kg material 7.3
27
Embodied Energy, MJ/kg 130
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.7 to 2.9
5.5
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 470
400
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 52
60
Strength to Weight: Axial, points 28 to 30
36
Strength to Weight: Bending, points 35 to 36
46
Thermal Diffusivity, mm2/s 56
59
Thermal Shock Resistance, points 14 to 15
15

Alloy Composition

Aluminum (Al), % 74.5 to 79.6
0
Copper (Cu), % 4.0 to 5.0
0 to 0.1
Iron (Fe), % 0 to 1.3
0
Magnesium (Mg), % 0.45 to 0.65
93.1 to 95.8
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 16 to 18
0
Silver (Ag), % 0
2.0 to 3.0
Titanium (Ti), % 0 to 0.2
0
Unspecified Rare Earths, % 0
1.8 to 2.5
Zinc (Zn), % 0 to 0.1
0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3