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EN AC-46400 Aluminum vs. EN-MC21210 Magnesium

EN AC-46400 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 EN AC-46400 aluminum and the bottom bar is EN-MC21210 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 77 to 120
48
Elastic (Young's, Tensile) Modulus, GPa 72
44
Elongation at Break, % 1.1 to 1.7
14
Fatigue Strength, MPa 75 to 85
70
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
17
Tensile Strength: Ultimate (UTS), MPa 170 to 310
190
Tensile Strength: Yield (Proof), MPa 110 to 270
90

Thermal Properties

Latent Heat of Fusion, J/g 520
350
Maximum Temperature: Mechanical, °C 170
100
Melting Completion (Liquidus), °C 610
600
Melting Onset (Solidus), °C 570
570
Specific Heat Capacity, J/kg-K 890
1000
Thermal Conductivity, W/m-K 130
120
Thermal Expansion, µm/m-K 22
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 7.8
24
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1070
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.7 to 4.9
22
Resilience: Unit (Modulus of Resilience), kJ/m3 82 to 500
92
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 52
72
Strength to Weight: Axial, points 18 to 32
32
Strength to Weight: Bending, points 26 to 38
44
Thermal Diffusivity, mm2/s 55
76
Thermal Shock Resistance, points 7.8 to 14
11

Alloy Composition

Aluminum (Al), % 85.4 to 90.5
1.6 to 2.6
Copper (Cu), % 0.8 to 1.3
0 to 0.010
Iron (Fe), % 0 to 0.8
0 to 0.0050
Lead (Pb), % 0 to 0.1
0
Magnesium (Mg), % 0.25 to 0.65
96.3 to 98.3
Manganese (Mn), % 0.15 to 0.55
0.1 to 0.7
Nickel (Ni), % 0 to 0.2
0 to 0.0020
Silicon (Si), % 8.3 to 9.7
0 to 0.1
Tin (Sn), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.8
0 to 0.2
Residuals, % 0
0 to 0.010