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707.0 Aluminum vs. EN-MC21110 Magnesium

707.0 aluminum belongs to the aluminum alloys classification, while EN-MC21110 magnesium belongs to the magnesium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is 707.0 aluminum and the bottom bar is EN-MC21110 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
46
Elongation at Break, % 1.7 to 3.4
2.8 to 6.7
Fatigue Strength, MPa 75 to 140
75 to 78
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Tensile Strength: Ultimate (UTS), MPa 270 to 300
200 to 270
Tensile Strength: Yield (Proof), MPa 170 to 250
100 to 120

Thermal Properties

Latent Heat of Fusion, J/g 380
350
Maximum Temperature: Mechanical, °C 180
130
Melting Completion (Liquidus), °C 630
600
Melting Onset (Solidus), °C 600
500
Specific Heat Capacity, J/kg-K 880
990
Thermal Conductivity, W/m-K 150
80
Thermal Expansion, µm/m-K 24
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
12
Electrical Conductivity: Equal Weight (Specific), % IACS 110
61

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.9
1.7
Embodied Carbon, kg CO2/kg material 8.3
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1140
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.3 to 8.6
4.9 to 14
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 430
120 to 150
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 47
69
Strength to Weight: Axial, points 26 to 29
33 to 44
Strength to Weight: Bending, points 32 to 34
45 to 54
Thermal Diffusivity, mm2/s 58
47
Thermal Shock Resistance, points 12 to 13
12 to 16

Alloy Composition

Aluminum (Al), % 90.5 to 93.6
7.0 to 8.7
Chromium (Cr), % 0.2 to 0.4
0
Copper (Cu), % 0 to 0.2
0 to 0.030
Iron (Fe), % 0 to 0.8
0 to 0.0050
Magnesium (Mg), % 1.8 to 2.4
89.6 to 92.6
Manganese (Mn), % 0.4 to 0.6
0.1 to 0.35
Nickel (Ni), % 0
0 to 0.0020
Silicon (Si), % 0 to 0.2
0 to 0.2
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 4.0 to 4.5
0.35 to 1.0
Residuals, % 0
0 to 0.010

Comparable Variants