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3203 Aluminum vs. EN-MC21210 Magnesium

3203 aluminum belongs to the aluminum alloys classification, while EN-MC21210 magnesium belongs to the magnesium 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 3203 aluminum and the bottom bar is EN-MC21210 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
44
Elongation at Break, % 4.5 to 29
14
Fatigue Strength, MPa 46 to 92
70
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 72 to 120
110
Tensile Strength: Ultimate (UTS), MPa 110 to 200
190
Tensile Strength: Yield (Proof), MPa 39 to 190
90

Thermal Properties

Latent Heat of Fusion, J/g 400
350
Maximum Temperature: Mechanical, °C 180
100
Melting Completion (Liquidus), °C 650
600
Melting Onset (Solidus), °C 620
570
Specific Heat Capacity, J/kg-K 900
1000
Thermal Conductivity, W/m-K 170
120
Thermal Expansion, µm/m-K 23
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 43
24
Electrical Conductivity: Equal Weight (Specific), % IACS 140
130

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
12
Density, g/cm3 2.8
1.6
Embodied Carbon, kg CO2/kg material 8.1
24
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1180
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.0 to 25
22
Resilience: Unit (Modulus of Resilience), kJ/m3 11 to 250
92
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
72
Strength to Weight: Axial, points 11 to 20
32
Strength to Weight: Bending, points 19 to 28
44
Thermal Diffusivity, mm2/s 70
76
Thermal Shock Resistance, points 4.9 to 8.8
11

Alloy Composition

Aluminum (Al), % 96.9 to 99
1.6 to 2.6
Copper (Cu), % 0 to 0.050
0 to 0.010
Iron (Fe), % 0 to 0.7
0 to 0.0050
Magnesium (Mg), % 0
96.3 to 98.3
Manganese (Mn), % 1.0 to 1.5
0.1 to 0.7
Nickel (Ni), % 0
0 to 0.0020
Silicon (Si), % 0 to 0.6
0 to 0.1
Zinc (Zn), % 0 to 0.1
0 to 0.2
Residuals, % 0
0 to 0.010