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EN-MC65120 Magnesium vs. 4015 Aluminum

EN-MC65120 magnesium belongs to the magnesium alloys classification, while 4015 aluminum belongs to the aluminum alloys.

For each property being compared, the top bar is EN-MC65120 magnesium and the bottom bar is 4015 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
35 to 70
Elastic (Young's, Tensile) Modulus, GPa 45
70
Elongation at Break, % 3.1
1.1 to 23
Fatigue Strength, MPa 80
46 to 71
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Shear Strength, MPa 92
82 to 120
Tensile Strength: Ultimate (UTS), MPa 160
130 to 220
Tensile Strength: Yield (Proof), MPa 110
50 to 200

Thermal Properties

Latent Heat of Fusion, J/g 330
420
Maximum Temperature: Mechanical, °C 180
160
Melting Completion (Liquidus), °C 590
640
Melting Onset (Solidus), °C 520
600
Specific Heat Capacity, J/kg-K 970
900
Thermal Conductivity, W/m-K 100
160
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
41
Electrical Conductivity: Equal Weight (Specific), % IACS 120
130

Otherwise Unclassified Properties

Base Metal Price, % relative 25
9.5
Density, g/cm3 1.9
2.7
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
2.4 to 24
Resilience: Unit (Modulus of Resilience), kJ/m3 140
18 to 290
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 62
50
Strength to Weight: Axial, points 23
13 to 22
Strength to Weight: Bending, points 34
21 to 30
Thermal Diffusivity, mm2/s 56
66
Thermal Shock Resistance, points 9.8
5.7 to 9.7

Alloy Composition


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Aluminum (Al), % 0
94.9 to 97.9
Copper (Cu), % 0 to 0.030
0 to 0.2
Iron (Fe), % 0 to 0.010
0 to 0.7
Magnesium (Mg), % 91.8 to 95.1
0.1 to 0.5
Manganese (Mn), % 0 to 0.15
0.6 to 1.2
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.010
1.4 to 2.2
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.0
0 to 0.2
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.15