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EN-MC65120 Magnesium vs. 4007 Aluminum

EN-MC65120 magnesium belongs to the magnesium alloys classification, while 4007 aluminum belongs to the aluminum alloys.

For each property being compared, the top bar is EN-MC65120 magnesium and the bottom bar is 4007 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
32 to 44
Elastic (Young's, Tensile) Modulus, GPa 45
71
Elongation at Break, % 3.1
5.1 to 23
Fatigue Strength, MPa 80
46 to 88
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
27
Shear Strength, MPa 92
80 to 90
Tensile Strength: Ultimate (UTS), MPa 160
130 to 160
Tensile Strength: Yield (Proof), MPa 110
50 to 120

Thermal Properties

Latent Heat of Fusion, J/g 330
410
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 590
650
Melting Onset (Solidus), °C 520
590
Specific Heat Capacity, J/kg-K 970
890
Thermal Conductivity, W/m-K 100
170
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
42
Electrical Conductivity: Equal Weight (Specific), % IACS 120
140

Otherwise Unclassified Properties

Base Metal Price, % relative 25
9.5
Density, g/cm3 1.9
2.8
Embodied Carbon, kg CO2/kg material 25
8.1
Embodied Energy, MJ/kg 190
150
Embodied Water, L/kg 930
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
7.4 to 23
Resilience: Unit (Modulus of Resilience), kJ/m3 140
18 to 110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 62
49
Strength to Weight: Axial, points 23
12 to 15
Strength to Weight: Bending, points 34
20 to 23
Thermal Diffusivity, mm2/s 56
67
Thermal Shock Resistance, points 9.8
5.5 to 6.7

Alloy Composition


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Aluminum (Al), % 0
94.1 to 97.6
Chromium (Cr), % 0
0.050 to 0.25
Cobalt (Co), % 0
0 to 0.050
Copper (Cu), % 0 to 0.030
0 to 0.2
Iron (Fe), % 0 to 0.010
0.4 to 1.0
Magnesium (Mg), % 91.8 to 95.1
0 to 0.2
Manganese (Mn), % 0 to 0.15
0.8 to 1.5
Nickel (Ni), % 0 to 0.0050
0.15 to 0.7
Silicon (Si), % 0 to 0.010
1.0 to 1.7
Titanium (Ti), % 0
0 to 0.1
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.0
0 to 0.1
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.15