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EN-MC32110 Magnesium vs. 4145 Aluminum

EN-MC32110 magnesium belongs to the magnesium alloys classification, while 4145 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-MC32110 magnesium and the bottom bar is 4145 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 49
73
Elongation at Break, % 2.2
2.2
Fatigue Strength, MPa 80
48
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 19
28
Shear Strength, MPa 120
69
Tensile Strength: Ultimate (UTS), MPa 220
120
Tensile Strength: Yield (Proof), MPa 140
68

Thermal Properties

Latent Heat of Fusion, J/g 330
540
Maximum Temperature: Mechanical, °C 99
160
Melting Completion (Liquidus), °C 600
590
Melting Onset (Solidus), °C 500
520
Specific Heat Capacity, J/kg-K 950
880
Thermal Conductivity, W/m-K 120
100
Thermal Expansion, µm/m-K 26
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
26
Electrical Conductivity: Equal Weight (Specific), % IACS 140
84

Otherwise Unclassified Properties

Base Metal Price, % relative 13
10
Density, g/cm3 2.1
2.8
Embodied Carbon, kg CO2/kg material 22
7.6
Embodied Energy, MJ/kg 150
140
Embodied Water, L/kg 920
1040

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.3
2.3
Resilience: Unit (Modulus of Resilience), kJ/m3 210
31
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 58
50
Strength to Weight: Axial, points 29
12
Strength to Weight: Bending, points 38
19
Thermal Diffusivity, mm2/s 58
42
Thermal Shock Resistance, points 12
5.5

Alloy Composition

Aluminum (Al), % 0 to 0.2
83 to 87.4
Chromium (Cr), % 0
0 to 0.15
Copper (Cu), % 2.4 to 3.0
3.3 to 4.7
Iron (Fe), % 0 to 0.050
0 to 0.8
Magnesium (Mg), % 89.3 to 91.9
0 to 0.15
Manganese (Mn), % 0.25 to 0.75
0 to 0.15
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0 to 0.2
9.3 to 10.7
Zinc (Zn), % 5.5 to 6.5
0 to 0.2
Residuals, % 0
0 to 0.15