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380.0 Aluminum vs. ISO-WD21150 Magnesium

380.0 aluminum belongs to the aluminum alloys classification, while ISO-WD21150 magnesium belongs to the magnesium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is 380.0 aluminum and the bottom bar is ISO-WD21150 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 74
45
Elongation at Break, % 3.0
5.7 to 11
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
17
Shear Strength, MPa 190
150 to 170
Tensile Strength: Ultimate (UTS), MPa 320
240 to 290
Tensile Strength: Yield (Proof), MPa 160
120 to 200

Thermal Properties

Latent Heat of Fusion, J/g 510
350
Maximum Temperature: Mechanical, °C 170
110
Melting Completion (Liquidus), °C 590
600
Melting Onset (Solidus), °C 540
550
Specific Heat Capacity, J/kg-K 870
990
Thermal Conductivity, W/m-K 100
100
Thermal Expansion, µm/m-K 22
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
19
Electrical Conductivity: Equal Weight (Specific), % IACS 83
100

Otherwise Unclassified Properties

Base Metal Price, % relative 10
12
Density, g/cm3 2.9
1.7
Embodied Carbon, kg CO2/kg material 7.5
23
Embodied Energy, MJ/kg 140
160
Embodied Water, L/kg 1040
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.0
15 to 24
Resilience: Unit (Modulus of Resilience), kJ/m3 170
160 to 460
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 48
70
Strength to Weight: Axial, points 31
40 to 48
Strength to Weight: Bending, points 36
52 to 58
Thermal Diffusivity, mm2/s 40
60
Thermal Shock Resistance, points 14
15 to 17

Alloy Composition

Aluminum (Al), % 79.6 to 89.5
2.4 to 3.6
Copper (Cu), % 3.0 to 4.0
0 to 0.050
Iron (Fe), % 0 to 2.0
0 to 0.0050
Magnesium (Mg), % 0 to 0.1
94 to 97
Manganese (Mn), % 0 to 0.5
0.15 to 0.4
Nickel (Ni), % 0 to 0.5
0 to 0.0050
Silicon (Si), % 7.5 to 9.5
0 to 0.1
Tin (Sn), % 0 to 0.35
0
Zinc (Zn), % 0 to 3.0
0.5 to 1.5
Residuals, % 0
0 to 0.3