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707.0 Aluminum vs. EN-MC65120 Magnesium

707.0 aluminum belongs to the aluminum alloys classification, while EN-MC65120 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-MC65120 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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