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EN AC-51200 Aluminum vs. ISO-WD21150 Magnesium

EN AC-51200 aluminum belongs to the aluminum alloys classification, while ISO-WD21150 magnesium belongs to the magnesium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN AC-51200 aluminum and the bottom bar is ISO-WD21150 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
45
Elongation at Break, % 1.1
5.7 to 11
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 25
17
Tensile Strength: Ultimate (UTS), MPa 220
240 to 290
Tensile Strength: Yield (Proof), MPa 150
120 to 200

Thermal Properties

Latent Heat of Fusion, J/g 410
350
Maximum Temperature: Mechanical, °C 170
110
Melting Completion (Liquidus), °C 640
600
Melting Onset (Solidus), °C 570
550
Specific Heat Capacity, J/kg-K 910
990
Thermal Conductivity, W/m-K 92
100
Thermal Expansion, µm/m-K 23
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 22
19
Electrical Conductivity: Equal Weight (Specific), % IACS 74
100

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.6
1.7
Embodied Carbon, kg CO2/kg material 9.6
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1150
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.2
15 to 24
Resilience: Unit (Modulus of Resilience), kJ/m3 160
160 to 460
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 51
70
Strength to Weight: Axial, points 24
40 to 48
Strength to Weight: Bending, points 31
52 to 58
Thermal Diffusivity, mm2/s 39
60
Thermal Shock Resistance, points 10
15 to 17

Alloy Composition

Aluminum (Al), % 84.5 to 92
2.4 to 3.6
Copper (Cu), % 0 to 0.1
0 to 0.050
Iron (Fe), % 0 to 1.0
0 to 0.0050
Lead (Pb), % 0 to 0.1
0
Magnesium (Mg), % 8.0 to 10.5
94 to 97
Manganese (Mn), % 0 to 0.55
0.15 to 0.4
Nickel (Ni), % 0 to 0.1
0 to 0.0050
Silicon (Si), % 0 to 2.5
0 to 0.1
Tin (Sn), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.25
0.5 to 1.5
Residuals, % 0
0 to 0.3