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4007 Aluminum vs. QE22A Magnesium

4007 aluminum belongs to the aluminum alloys classification, while QE22A magnesium belongs to the magnesium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is 4007 aluminum and the bottom bar is QE22A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 32 to 44
80
Elastic (Young's, Tensile) Modulus, GPa 71
44
Elongation at Break, % 5.1 to 23
2.4
Fatigue Strength, MPa 46 to 88
110
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
17
Shear Strength, MPa 80 to 90
150
Tensile Strength: Ultimate (UTS), MPa 130 to 160
250
Tensile Strength: Yield (Proof), MPa 50 to 120
190

Thermal Properties

Latent Heat of Fusion, J/g 410
340
Maximum Temperature: Mechanical, °C 170
250
Melting Completion (Liquidus), °C 650
640
Melting Onset (Solidus), °C 590
570
Specific Heat Capacity, J/kg-K 890
970
Thermal Conductivity, W/m-K 170
110
Thermal Expansion, µm/m-K 23
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
25
Electrical Conductivity: Equal Weight (Specific), % IACS 140
120

Otherwise Unclassified Properties

Density, g/cm3 2.8
2.0
Embodied Carbon, kg CO2/kg material 8.1
27
Embodied Energy, MJ/kg 150
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.4 to 23
5.5
Resilience: Unit (Modulus of Resilience), kJ/m3 18 to 110
400
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
60
Strength to Weight: Axial, points 12 to 15
36
Strength to Weight: Bending, points 20 to 23
46
Thermal Diffusivity, mm2/s 67
59
Thermal Shock Resistance, points 5.5 to 6.7
15

Alloy Composition

Aluminum (Al), % 94.1 to 97.6
0
Chromium (Cr), % 0.050 to 0.25
0
Cobalt (Co), % 0 to 0.050
0
Copper (Cu), % 0 to 0.2
0 to 0.1
Iron (Fe), % 0.4 to 1.0
0
Magnesium (Mg), % 0 to 0.2
93.1 to 95.8
Manganese (Mn), % 0.8 to 1.5
0
Nickel (Ni), % 0.15 to 0.7
0 to 0.010
Silicon (Si), % 1.0 to 1.7
0
Silver (Ag), % 0
2.0 to 3.0
Titanium (Ti), % 0 to 0.1
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