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5754 Aluminum vs. EN-MC21210 Magnesium

5754 aluminum belongs to the aluminum alloys classification, while EN-MC21210 magnesium belongs to the magnesium alloys.

For each property being compared, the top bar is 5754 aluminum and the bottom bar is EN-MC21210 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 52 to 88
48
Elastic (Young's, Tensile) Modulus, GPa 68
44
Elongation at Break, % 2.0 to 19
14
Fatigue Strength, MPa 66 to 140
70
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 120 to 190
110
Tensile Strength: Ultimate (UTS), MPa 200 to 330
190
Tensile Strength: Yield (Proof), MPa 80 to 280
90

Thermal Properties

Latent Heat of Fusion, J/g 400
350
Maximum Temperature: Mechanical, °C 190
100
Melting Completion (Liquidus), °C 650
600
Melting Onset (Solidus), °C 600
570
Specific Heat Capacity, J/kg-K 900
1000
Thermal Conductivity, W/m-K 130
120
Thermal Expansion, µm/m-K 24
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
24
Electrical Conductivity: Equal Weight (Specific), % IACS 110
130

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
1.6
Embodied Carbon, kg CO2/kg material 8.7
24
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1180
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.1 to 32
22
Resilience: Unit (Modulus of Resilience), kJ/m3 47 to 580
92
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
72
Strength to Weight: Axial, points 21 to 34
32
Strength to Weight: Bending, points 28 to 39
44
Thermal Diffusivity, mm2/s 54
76
Thermal Shock Resistance, points 8.9 to 14
11

Alloy Composition

Aluminum (Al), % 94.2 to 97.4
1.6 to 2.6
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.1
0 to 0.010
Iron (Fe), % 0 to 0.4
0 to 0.0050
Magnesium (Mg), % 2.6 to 3.6
96.3 to 98.3
Manganese (Mn), % 0 to 0.5
0.1 to 0.7
Nickel (Ni), % 0
0 to 0.0020
Silicon (Si), % 0 to 0.4
0 to 0.1
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.2
0 to 0.2
Residuals, % 0
0 to 0.010