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ZK40A Magnesium vs. A356.0 Aluminum

ZK40A magnesium belongs to the magnesium alloys classification, while A356.0 aluminum belongs to the aluminum 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 ZK40A magnesium and the bottom bar is A356.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
70
Elongation at Break, % 4.2
3.0 to 6.0
Fatigue Strength, MPa 190
50 to 90
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Tensile Strength: Ultimate (UTS), MPa 280
160 to 270
Tensile Strength: Yield (Proof), MPa 260
83 to 200

Thermal Properties

Latent Heat of Fusion, J/g 340
500
Maximum Temperature: Mechanical, °C 120
170
Melting Completion (Liquidus), °C 600
610
Melting Onset (Solidus), °C 540
570
Specific Heat Capacity, J/kg-K 970
900
Thermal Conductivity, W/m-K 110
150
Thermal Expansion, µm/m-K 26
21

Electrical Properties

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

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
4.8 to 15
Resilience: Unit (Modulus of Resilience), kJ/m3 740
49 to 300
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 65
53
Strength to Weight: Axial, points 43
17 to 29
Strength to Weight: Bending, points 53
25 to 36
Thermal Diffusivity, mm2/s 62
64
Thermal Shock Resistance, points 17
7.6 to 13

Alloy Composition


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Aluminum (Al), % 0
91.1 to 93.3
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 0
0 to 0.2
Magnesium (Mg), % 94.2 to 96.1
0.25 to 0.45
Manganese (Mn), % 0
0 to 0.1
Silicon (Si), % 0
6.5 to 7.5
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 3.5 to 4.5
0 to 0.1
Zirconium (Zr), % 0.45 to 1.0
0
Residuals, % 0 to 0.3
0 to 0.15