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ZK40A Magnesium vs. 356.0 Aluminum

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

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

Aluminum (Al), % 0
90.1 to 93.3
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0
0 to 0.6
Magnesium (Mg), % 94.2 to 96.1
0.2 to 0.45
Manganese (Mn), % 0
0 to 0.35
Silicon (Si), % 0
6.5 to 7.5
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 3.5 to 4.5
0 to 0.35
Zirconium (Zr), % 0.45 to 1.0
0
Residuals, % 0
0 to 0.15