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390.0 Aluminum vs. ISO-WD21150 Magnesium

390.0 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 390.0 aluminum and the bottom bar is ISO-WD21150 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 75
45
Elongation at Break, % 1.0
5.7 to 11
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
17
Tensile Strength: Ultimate (UTS), MPa 280 to 300
240 to 290
Tensile Strength: Yield (Proof), MPa 240 to 270
120 to 200

Thermal Properties

Latent Heat of Fusion, J/g 640
350
Maximum Temperature: Mechanical, °C 170
110
Melting Completion (Liquidus), °C 650
600
Melting Onset (Solidus), °C 560
550
Specific Heat Capacity, J/kg-K 880
990
Thermal Conductivity, W/m-K 130
100
Thermal Expansion, µm/m-K 18
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24 to 25
19
Electrical Conductivity: Equal Weight (Specific), % IACS 79 to 83
100

Otherwise Unclassified Properties

Base Metal Price, % relative 11
12
Density, g/cm3 2.7
1.7
Embodied Carbon, kg CO2/kg material 7.3
23
Embodied Energy, MJ/kg 130
160
Embodied Water, L/kg 950
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.7 to 2.9
15 to 24
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 470
160 to 460
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 52
70
Strength to Weight: Axial, points 28 to 30
40 to 48
Strength to Weight: Bending, points 35 to 36
52 to 58
Thermal Diffusivity, mm2/s 56
60
Thermal Shock Resistance, points 14 to 15
15 to 17

Alloy Composition

Aluminum (Al), % 74.5 to 79.6
2.4 to 3.6
Copper (Cu), % 4.0 to 5.0
0 to 0.050
Iron (Fe), % 0 to 1.3
0 to 0.0050
Magnesium (Mg), % 0.45 to 0.65
94 to 97
Manganese (Mn), % 0 to 0.1
0.15 to 0.4
Nickel (Ni), % 0
0 to 0.0050
Silicon (Si), % 16 to 18
0 to 0.1
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.1
0.5 to 1.5
Residuals, % 0
0 to 0.3

Comparable Variants