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772.0 Aluminum vs. ISO-WD21150 Magnesium

772.0 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 (2, in this case) are not shown.

For each property being compared, the top bar is 772.0 aluminum and the bottom bar is ISO-WD21150 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
45
Elongation at Break, % 6.3 to 8.4
5.7 to 11
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 26
17
Tensile Strength: Ultimate (UTS), MPa 260 to 320
240 to 290
Tensile Strength: Yield (Proof), MPa 220 to 250
120 to 200

Thermal Properties

Latent Heat of Fusion, J/g 380
350
Maximum Temperature: Mechanical, °C 180
110
Melting Completion (Liquidus), °C 630
600
Melting Onset (Solidus), °C 580
550
Specific Heat Capacity, J/kg-K 870
990
Thermal Conductivity, W/m-K 150
100
Thermal Expansion, µm/m-K 24
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
19
Electrical Conductivity: Equal Weight (Specific), % IACS 110
100

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 3.0
1.7
Embodied Carbon, kg CO2/kg material 8.0
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1140
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 25
15 to 24
Resilience: Unit (Modulus of Resilience), kJ/m3 350 to 430
160 to 460
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 46
70
Strength to Weight: Axial, points 25 to 31
40 to 48
Strength to Weight: Bending, points 31 to 36
52 to 58
Thermal Diffusivity, mm2/s 58
60
Thermal Shock Resistance, points 11 to 14
15 to 17

Alloy Composition

Aluminum (Al), % 91.2 to 93.2
2.4 to 3.6
Chromium (Cr), % 0.060 to 0.2
0
Copper (Cu), % 0 to 0.1
0 to 0.050
Iron (Fe), % 0 to 0.15
0 to 0.0050
Magnesium (Mg), % 0.6 to 0.8
94 to 97
Manganese (Mn), % 0 to 0.1
0.15 to 0.4
Nickel (Ni), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.15
0 to 0.1
Titanium (Ti), % 0.1 to 0.2
0
Zinc (Zn), % 6.0 to 7.0
0.5 to 1.5
Residuals, % 0
0 to 0.3

Comparable Variants