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7010 Aluminum vs. EQ21A Magnesium

7010 aluminum belongs to the aluminum alloys classification, while EQ21A 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 7010 aluminum and the bottom bar is EQ21A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
44
Elongation at Break, % 3.9 to 6.8
2.4
Fatigue Strength, MPa 160 to 190
110
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 300 to 340
150
Tensile Strength: Ultimate (UTS), MPa 520 to 590
250
Tensile Strength: Yield (Proof), MPa 410 to 540
190

Thermal Properties

Latent Heat of Fusion, J/g 380
340
Maximum Temperature: Mechanical, °C 200
160
Melting Completion (Liquidus), °C 630
640
Melting Onset (Solidus), °C 480
560
Specific Heat Capacity, J/kg-K 860
980
Thermal Conductivity, W/m-K 150
110
Thermal Expansion, µm/m-K 24
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
25
Electrical Conductivity: Equal Weight (Specific), % IACS 120
120

Otherwise Unclassified Properties

Base Metal Price, % relative 10
80
Density, g/cm3 3.0
1.9
Embodied Carbon, kg CO2/kg material 8.3
27
Embodied Energy, MJ/kg 150
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22 to 33
5.6
Resilience: Unit (Modulus of Resilience), kJ/m3 1230 to 2130
410
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
63
Strength to Weight: Axial, points 47 to 54
37
Strength to Weight: Bending, points 47 to 52
47
Thermal Diffusivity, mm2/s 58
62
Thermal Shock Resistance, points 22 to 26
15

Alloy Composition

Aluminum (Al), % 87.9 to 90.6
0
Chromium (Cr), % 0 to 0.050
0
Copper (Cu), % 1.5 to 2.0
0.050 to 0.1
Iron (Fe), % 0 to 0.15
0
Magnesium (Mg), % 2.1 to 2.6
93.9 to 96.8
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.050
0 to 0.010
Silicon (Si), % 0 to 0.12
0
Silver (Ag), % 0
1.3 to 1.7
Titanium (Ti), % 0 to 0.060
0
Unspecified Rare Earths, % 0
1.5 to 3.0
Zinc (Zn), % 5.7 to 6.7
0
Zirconium (Zr), % 0.1 to 0.16
0.4 to 1.0
Residuals, % 0
0 to 0.3