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EN-MC65220 Magnesium vs. 2025 Aluminum

EN-MC65220 magnesium belongs to the magnesium alloys classification, while 2025 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN-MC65220 magnesium and the bottom bar is 2025 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
110
Elastic (Young's, Tensile) Modulus, GPa 44
72
Elongation at Break, % 2.2
15
Fatigue Strength, MPa 110
130
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
27
Shear Strength, MPa 150
240
Tensile Strength: Ultimate (UTS), MPa 270
400
Tensile Strength: Yield (Proof), MPa 200
260

Thermal Properties

Latent Heat of Fusion, J/g 340
400
Maximum Temperature: Mechanical, °C 160
190
Melting Completion (Liquidus), °C 610
640
Melting Onset (Solidus), °C 550
520
Specific Heat Capacity, J/kg-K 980
870
Thermal Conductivity, W/m-K 110
150
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
40
Electrical Conductivity: Equal Weight (Specific), % IACS 120
120

Otherwise Unclassified Properties

Base Metal Price, % relative 80
10
Density, g/cm3 1.9
3.0
Embodied Carbon, kg CO2/kg material 27
7.9
Embodied Energy, MJ/kg 210
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
55
Resilience: Unit (Modulus of Resilience), kJ/m3 450
450
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 62
46
Strength to Weight: Axial, points 40
37
Strength to Weight: Bending, points 49
40
Thermal Diffusivity, mm2/s 61
58
Thermal Shock Resistance, points 17
18

Alloy Composition

Aluminum (Al), % 0
90.9 to 95.2
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0.050 to 0.1
3.9 to 5.0
Iron (Fe), % 0 to 0.010
0 to 1.0
Magnesium (Mg), % 93.8 to 96.8
0 to 0.050
Manganese (Mn), % 0 to 0.15
0.4 to 1.2
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.010
0.5 to 1.2
Silver (Ag), % 1.3 to 1.7
0
Titanium (Ti), % 0
0 to 0.15
Unspecified Rare Earths, % 1.5 to 3.0
0
Zinc (Zn), % 0 to 0.2
0 to 0.25
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0
0 to 0.15