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C355.0 Aluminum vs. ISO-WD21150 Magnesium

C355.0 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 (4, in this case) are not shown.

For each property being compared, the top bar is C355.0 aluminum and the bottom bar is ISO-WD21150 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
45
Elongation at Break, % 2.7 to 3.8
5.7 to 11
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Tensile Strength: Ultimate (UTS), MPa 290 to 310
240 to 290
Tensile Strength: Yield (Proof), MPa 200 to 230
120 to 200

Thermal Properties

Latent Heat of Fusion, J/g 470
350
Maximum Temperature: Mechanical, °C 170
110
Melting Completion (Liquidus), °C 620
600
Melting Onset (Solidus), °C 570
550
Specific Heat Capacity, J/kg-K 900
990
Thermal Conductivity, W/m-K 150
100
Thermal Expansion, µm/m-K 22
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 39
19
Electrical Conductivity: Equal Weight (Specific), % IACS 130
100

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
1.7
Embodied Carbon, kg CO2/kg material 8.0
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1120
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.5 to 9.8
15 to 24
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 380
160 to 460
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 51
70
Strength to Weight: Axial, points 30 to 32
40 to 48
Strength to Weight: Bending, points 36 to 37
52 to 58
Thermal Diffusivity, mm2/s 60
60
Thermal Shock Resistance, points 13 to 14
15 to 17

Alloy Composition

Aluminum (Al), % 91.7 to 94.1
2.4 to 3.6
Copper (Cu), % 1.0 to 1.5
0 to 0.050
Iron (Fe), % 0 to 0.2
0 to 0.0050
Magnesium (Mg), % 0.4 to 0.6
94 to 97
Manganese (Mn), % 0 to 0.1
0.15 to 0.4
Nickel (Ni), % 0
0 to 0.0050
Silicon (Si), % 4.5 to 5.5
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