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EN-MC21310 Magnesium vs. 5056 Aluminum

EN-MC21310 magnesium belongs to the magnesium alloys classification, while 5056 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-MC21310 magnesium and the bottom bar is 5056 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
67
Elongation at Break, % 9.0
4.9 to 31
Fatigue Strength, MPa 86
140 to 200
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
25
Shear Strength, MPa 120
170 to 240
Tensile Strength: Ultimate (UTS), MPa 200
290 to 460
Tensile Strength: Yield (Proof), MPa 120
150 to 410

Thermal Properties

Latent Heat of Fusion, J/g 360
400
Maximum Temperature: Mechanical, °C 100
190
Melting Completion (Liquidus), °C 600
640
Melting Onset (Solidus), °C 560
570
Specific Heat Capacity, J/kg-K 1000
910
Thermal Conductivity, W/m-K 89
130
Thermal Expansion, µm/m-K 26
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 22
29
Electrical Conductivity: Equal Weight (Specific), % IACS 120
99

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 1.6
2.7
Embodied Carbon, kg CO2/kg material 23
9.0
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 970
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16
12 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 160
170 to 1220
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 73
51
Strength to Weight: Axial, points 34
30 to 48
Strength to Weight: Bending, points 47
36 to 50
Thermal Diffusivity, mm2/s 55
53
Thermal Shock Resistance, points 12
13 to 20

Alloy Composition


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Aluminum (Al), % 1.8 to 2.6
93 to 95.4
Chromium (Cr), % 0
0.050 to 0.2
Copper (Cu), % 0 to 0.010
0 to 0.1
Iron (Fe), % 0 to 0.0050
0 to 0.4
Magnesium (Mg), % 95.2 to 97.4
4.5 to 5.6
Manganese (Mn), % 0.1 to 0.7
0.050 to 0.2
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0.7 to 1.2
0 to 0.3
Zinc (Zn), % 0 to 0.2
0 to 0.1
Residuals, % 0 to 0.010
0 to 0.15