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EN-MC65120 Magnesium vs. 4147 Aluminum

EN-MC65120 magnesium belongs to the magnesium alloys classification, while 4147 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN-MC65120 magnesium and the bottom bar is 4147 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
72
Elongation at Break, % 3.1
3.3
Fatigue Strength, MPa 80
42
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
27
Shear Strength, MPa 92
63
Tensile Strength: Ultimate (UTS), MPa 160
110
Tensile Strength: Yield (Proof), MPa 110
59

Thermal Properties

Latent Heat of Fusion, J/g 330
570
Maximum Temperature: Mechanical, °C 180
160
Melting Completion (Liquidus), °C 590
580
Melting Onset (Solidus), °C 520
560
Specific Heat Capacity, J/kg-K 970
900
Thermal Conductivity, W/m-K 100
130
Thermal Expansion, µm/m-K 26
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
33
Electrical Conductivity: Equal Weight (Specific), % IACS 120
120

Otherwise Unclassified Properties

Base Metal Price, % relative 25
9.5
Density, g/cm3 1.9
2.5
Embodied Carbon, kg CO2/kg material 25
7.7
Embodied Energy, MJ/kg 190
140
Embodied Water, L/kg 930
1050

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
3.1
Resilience: Unit (Modulus of Resilience), kJ/m3 140
24
Stiffness to Weight: Axial, points 13
16
Stiffness to Weight: Bending, points 62
55
Strength to Weight: Axial, points 23
12
Strength to Weight: Bending, points 34
20
Thermal Diffusivity, mm2/s 56
58
Thermal Shock Resistance, points 9.8
5.2

Alloy Composition


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Aluminum (Al), % 0
85 to 88.9
Beryllium (Be), % 0
0 to 0.00030
Copper (Cu), % 0 to 0.030
0 to 0.25
Iron (Fe), % 0 to 0.010
0 to 0.8
Magnesium (Mg), % 91.8 to 95.1
0.1 to 0.5
Manganese (Mn), % 0 to 0.15
0 to 0.1
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.010
11 to 13
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