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7076 Aluminum vs. QE22A Magnesium

7076 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 7076 aluminum and the bottom bar is QE22A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
80
Elastic (Young's, Tensile) Modulus, GPa 70
44
Elongation at Break, % 6.2
2.4
Fatigue Strength, MPa 170
110
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 27
17
Shear Strength, MPa 310
150
Tensile Strength: Ultimate (UTS), MPa 530
250
Tensile Strength: Yield (Proof), MPa 460
190

Thermal Properties

Latent Heat of Fusion, J/g 380
340
Maximum Temperature: Mechanical, °C 170
250
Melting Completion (Liquidus), °C 630
640
Melting Onset (Solidus), °C 460
570
Specific Heat Capacity, J/kg-K 860
970
Thermal Conductivity, W/m-K 140
110
Thermal Expansion, µm/m-K 24
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
25
Electrical Conductivity: Equal Weight (Specific), % IACS 100
120

Otherwise Unclassified Properties

Density, g/cm3 3.0
2.0
Embodied Carbon, kg CO2/kg material 8.0
27
Embodied Energy, MJ/kg 150
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
5.5
Resilience: Unit (Modulus of Resilience), kJ/m3 1510
400
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
60
Strength to Weight: Axial, points 49
36
Strength to Weight: Bending, points 48
46
Thermal Diffusivity, mm2/s 54
59
Thermal Shock Resistance, points 23
15

Alloy Composition

Aluminum (Al), % 86.9 to 91.2
0
Copper (Cu), % 0.3 to 1.0
0 to 0.1
Iron (Fe), % 0 to 0.6
0
Magnesium (Mg), % 1.2 to 2.0
93.1 to 95.8
Manganese (Mn), % 0.3 to 0.8
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.4
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), % 7.0 to 8.0
0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3