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3103 Aluminum vs. EN-MC21110 Magnesium

3103 aluminum belongs to the aluminum alloys classification, while EN-MC21110 magnesium belongs to the magnesium alloys.

For each property being compared, the top bar is 3103 aluminum and the bottom bar is EN-MC21110 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 27 to 62
58 to 63
Elastic (Young's, Tensile) Modulus, GPa 70
46
Elongation at Break, % 1.1 to 28
2.8 to 6.7
Fatigue Strength, MPa 38 to 83
75 to 78
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 68 to 130
120 to 160
Tensile Strength: Ultimate (UTS), MPa 100 to 220
200 to 270
Tensile Strength: Yield (Proof), MPa 39 to 200
100 to 120

Thermal Properties

Latent Heat of Fusion, J/g 400
350
Maximum Temperature: Mechanical, °C 190
130
Melting Completion (Liquidus), °C 660
600
Melting Onset (Solidus), °C 640
500
Specific Heat Capacity, J/kg-K 900
990
Thermal Conductivity, W/m-K 160
80
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
12
Electrical Conductivity: Equal Weight (Specific), % IACS 140
61

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.8
1.7
Embodied Carbon, kg CO2/kg material 8.2
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1180
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.4 to 24
4.9 to 14
Resilience: Unit (Modulus of Resilience), kJ/m3 11 to 280
120 to 150
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
69
Strength to Weight: Axial, points 10 to 22
33 to 44
Strength to Weight: Bending, points 18 to 30
45 to 54
Thermal Diffusivity, mm2/s 64
47
Thermal Shock Resistance, points 4.6 to 9.9
12 to 16

Alloy Composition

Aluminum (Al), % 96.3 to 99.1
7.0 to 8.7
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.1
0 to 0.030
Iron (Fe), % 0 to 0.7
0 to 0.0050
Magnesium (Mg), % 0 to 0.3
89.6 to 92.6
Manganese (Mn), % 0.9 to 1.5
0.1 to 0.35
Nickel (Ni), % 0
0 to 0.0020
Silicon (Si), % 0 to 0.5
0 to 0.2
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.2
0.35 to 1.0
Zirconium (Zr), % 0 to 0.1
0
Residuals, % 0
0 to 0.010

Comparable Variants