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356.0 Aluminum vs. ZK40A Magnesium

356.0 aluminum belongs to the aluminum alloys classification, while ZK40A magnesium belongs to the magnesium alloys. There are 30 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 356.0 aluminum and the bottom bar is ZK40A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
45
Elongation at Break, % 2.0 to 3.8
4.2
Fatigue Strength, MPa 55 to 75
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
17
Shear Strength, MPa 140 to 190
160
Tensile Strength: Ultimate (UTS), MPa 160 to 240
280
Tensile Strength: Yield (Proof), MPa 100 to 190
260

Thermal Properties

Latent Heat of Fusion, J/g 500
340
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 620
600
Melting Onset (Solidus), °C 570
540
Specific Heat Capacity, J/kg-K 900
970
Thermal Conductivity, W/m-K 150 to 170
110
Thermal Expansion, µm/m-K 21
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40 to 43
27
Electrical Conductivity: Equal Weight (Specific), % IACS 140 to 150
130

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.6
1.8
Embodied Carbon, kg CO2/kg material 8.0
24
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1110
950

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.2 to 8.2
12
Resilience: Unit (Modulus of Resilience), kJ/m3 70 to 250
740
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 53
65
Strength to Weight: Axial, points 17 to 26
43
Strength to Weight: Bending, points 25 to 33
53
Thermal Diffusivity, mm2/s 64 to 71
62
Thermal Shock Resistance, points 7.6 to 11
17

Alloy Composition

Aluminum (Al), % 90.1 to 93.3
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0 to 0.6
0
Magnesium (Mg), % 0.2 to 0.45
94.2 to 96.1
Manganese (Mn), % 0 to 0.35
0
Silicon (Si), % 6.5 to 7.5
0
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.35
3.5 to 4.5
Zirconium (Zr), % 0
0.45 to 1.0
Residuals, % 0
0 to 0.3