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711.0 Aluminum vs. EQ21A Magnesium

711.0 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 711.0 aluminum and the bottom bar is EQ21A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 70
80
Elastic (Young's, Tensile) Modulus, GPa 71
44
Elongation at Break, % 7.8
2.4
Fatigue Strength, MPa 100
110
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 27
17
Tensile Strength: Ultimate (UTS), MPa 220
250
Tensile Strength: Yield (Proof), MPa 140
190

Thermal Properties

Latent Heat of Fusion, J/g 380
340
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 610
560
Specific Heat Capacity, J/kg-K 860
980
Thermal Conductivity, W/m-K 160
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 9.5
80
Density, g/cm3 3.0
1.9
Embodied Carbon, kg CO2/kg material 7.9
27
Embodied Energy, MJ/kg 150
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15
5.6
Resilience: Unit (Modulus of Resilience), kJ/m3 140
410
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
63
Strength to Weight: Axial, points 20
37
Strength to Weight: Bending, points 26
47
Thermal Diffusivity, mm2/s 61
62
Thermal Shock Resistance, points 9.3
15

Alloy Composition

Aluminum (Al), % 89.8 to 92.7
0
Copper (Cu), % 0.35 to 0.65
0.050 to 0.1
Iron (Fe), % 0.7 to 1.4
0
Magnesium (Mg), % 0.25 to 0.45
93.9 to 96.8
Manganese (Mn), % 0 to 0.050
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.3
0
Silver (Ag), % 0
1.3 to 1.7
Titanium (Ti), % 0 to 0.2
0
Unspecified Rare Earths, % 0
1.5 to 3.0
Zinc (Zn), % 6.0 to 7.0
0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3