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EN-MC65120 Magnesium vs. 707.0 Aluminum

EN-MC65120 magnesium belongs to the magnesium alloys classification, while 707.0 aluminum belongs to the aluminum 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 EN-MC65120 magnesium and the bottom bar is 707.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
70
Elongation at Break, % 3.1
1.7 to 3.4
Fatigue Strength, MPa 80
75 to 140
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Tensile Strength: Ultimate (UTS), MPa 160
270 to 300
Tensile Strength: Yield (Proof), MPa 110
170 to 250

Thermal Properties

Latent Heat of Fusion, J/g 330
380
Maximum Temperature: Mechanical, °C 180
180
Melting Completion (Liquidus), °C 590
630
Melting Onset (Solidus), °C 520
600
Specific Heat Capacity, J/kg-K 970
880
Thermal Conductivity, W/m-K 100
150
Thermal Expansion, µm/m-K 26
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
37
Electrical Conductivity: Equal Weight (Specific), % IACS 120
110

Otherwise Unclassified Properties

Base Metal Price, % relative 25
9.5
Density, g/cm3 1.9
2.9
Embodied Carbon, kg CO2/kg material 25
8.3
Embodied Energy, MJ/kg 190
150
Embodied Water, L/kg 930
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
4.3 to 8.6
Resilience: Unit (Modulus of Resilience), kJ/m3 140
210 to 430
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 62
47
Strength to Weight: Axial, points 23
26 to 29
Strength to Weight: Bending, points 34
32 to 34
Thermal Diffusivity, mm2/s 56
58
Thermal Shock Resistance, points 9.8
12 to 13

Alloy Composition

Aluminum (Al), % 0
90.5 to 93.6
Chromium (Cr), % 0
0.2 to 0.4
Copper (Cu), % 0 to 0.030
0 to 0.2
Iron (Fe), % 0 to 0.010
0 to 0.8
Magnesium (Mg), % 91.8 to 95.1
1.8 to 2.4
Manganese (Mn), % 0 to 0.15
0.4 to 0.6
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.010
0 to 0.2
Titanium (Ti), % 0
0 to 0.25
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.0
4.0 to 4.5
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.15