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5457 Aluminum vs. ISO-WD21150 Magnesium

5457 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 5457 aluminum and the bottom bar is ISO-WD21150 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
45
Elongation at Break, % 6.0 to 22
5.7 to 11
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 85 to 130
150 to 170
Tensile Strength: Ultimate (UTS), MPa 130 to 210
240 to 290
Tensile Strength: Yield (Proof), MPa 50 to 190
120 to 200

Thermal Properties

Latent Heat of Fusion, J/g 400
350
Maximum Temperature: Mechanical, °C 180
110
Melting Completion (Liquidus), °C 660
600
Melting Onset (Solidus), °C 630
550
Specific Heat Capacity, J/kg-K 900
990
Thermal Conductivity, W/m-K 180
100
Thermal Expansion, µm/m-K 24
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 46
19
Electrical Conductivity: Equal Weight (Specific), % IACS 150
100

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
1.7
Embodied Carbon, kg CO2/kg material 8.4
23
Embodied Energy, MJ/kg 160
160
Embodied Water, L/kg 1190
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 23
15 to 24
Resilience: Unit (Modulus of Resilience), kJ/m3 18 to 250
160 to 460
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
70
Strength to Weight: Axial, points 13 to 21
40 to 48
Strength to Weight: Bending, points 21 to 28
52 to 58
Thermal Diffusivity, mm2/s 72
60
Thermal Shock Resistance, points 5.7 to 9.0
15 to 17

Alloy Composition

Aluminum (Al), % 97.8 to 99.05
2.4 to 3.6
Copper (Cu), % 0 to 0.2
0 to 0.050
Iron (Fe), % 0 to 0.1
0 to 0.0050
Magnesium (Mg), % 0.8 to 1.2
94 to 97
Manganese (Mn), % 0.15 to 0.45
0.15 to 0.4
Nickel (Ni), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.080
0 to 0.1
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.050
0.5 to 1.5
Residuals, % 0
0 to 0.3

Comparable Variants