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ZK40A Magnesium vs. EN AC-45300 Aluminum

ZK40A magnesium belongs to the magnesium alloys classification, while EN AC-45300 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 EN AC-45300 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
71
Elongation at Break, % 4.2
1.0 to 2.8
Fatigue Strength, MPa 190
59 to 72
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
27
Tensile Strength: Ultimate (UTS), MPa 280
220 to 290
Tensile Strength: Yield (Proof), MPa 260
150 to 230

Thermal Properties

Latent Heat of Fusion, J/g 340
470
Maximum Temperature: Mechanical, °C 120
170
Melting Completion (Liquidus), °C 600
630
Melting Onset (Solidus), °C 540
590
Specific Heat Capacity, J/kg-K 970
890
Thermal Conductivity, W/m-K 110
150
Thermal Expansion, µm/m-K 26
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
36
Electrical Conductivity: Equal Weight (Specific), % IACS 130
120

Otherwise Unclassified Properties

Base Metal Price, % relative 13
9.5
Density, g/cm3 1.8
2.7
Embodied Carbon, kg CO2/kg material 24
8.0
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 950
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
2.7 to 5.6
Resilience: Unit (Modulus of Resilience), kJ/m3 740
160 to 390
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 65
50
Strength to Weight: Axial, points 43
23 to 29
Strength to Weight: Bending, points 53
30 to 35
Thermal Diffusivity, mm2/s 62
60
Thermal Shock Resistance, points 17
10 to 13

Alloy Composition


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Aluminum (Al), % 0
90.2 to 94.2
Copper (Cu), % 0
1.0 to 1.5
Iron (Fe), % 0
0 to 0.65
Lead (Pb), % 0
0 to 0.15
Magnesium (Mg), % 94.2 to 96.1
0.35 to 0.65
Manganese (Mn), % 0
0 to 0.55
Nickel (Ni), % 0
0 to 0.25
Silicon (Si), % 0
4.5 to 5.5
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 3.5 to 4.5
0 to 0.15
Zirconium (Zr), % 0.45 to 1.0
0
Residuals, % 0 to 0.3
0 to 0.15