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ZK40A Magnesium vs. B390.0 Aluminum

ZK40A magnesium belongs to the magnesium alloys classification, while B390.0 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ZK40A magnesium and the bottom bar is B390.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
76
Elongation at Break, % 4.2
0.88
Fatigue Strength, MPa 190
170
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
29
Tensile Strength: Ultimate (UTS), MPa 280
320
Tensile Strength: Yield (Proof), MPa 260
250

Thermal Properties

Latent Heat of Fusion, J/g 340
640
Maximum Temperature: Mechanical, °C 120
170
Melting Completion (Liquidus), °C 600
580
Melting Onset (Solidus), °C 540
580
Specific Heat Capacity, J/kg-K 970
880
Thermal Conductivity, W/m-K 110
130
Thermal Expansion, µm/m-K 26
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
27
Electrical Conductivity: Equal Weight (Specific), % IACS 130
88

Otherwise Unclassified Properties

Base Metal Price, % relative 13
11
Density, g/cm3 1.8
2.8
Embodied Carbon, kg CO2/kg material 24
7.3
Embodied Energy, MJ/kg 160
130
Embodied Water, L/kg 950
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
2.6
Resilience: Unit (Modulus of Resilience), kJ/m3 740
410
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 65
51
Strength to Weight: Axial, points 43
32
Strength to Weight: Bending, points 53
38
Thermal Diffusivity, mm2/s 62
55
Thermal Shock Resistance, points 17
15

Alloy Composition


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Aluminum (Al), % 0
72.7 to 79.6
Copper (Cu), % 0
4.0 to 5.0
Iron (Fe), % 0
0 to 1.3
Magnesium (Mg), % 94.2 to 96.1
0.45 to 0.65
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0
0 to 0.1
Silicon (Si), % 0
16 to 18
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 3.5 to 4.5
0 to 1.5
Zirconium (Zr), % 0.45 to 1.0
0
Residuals, % 0 to 0.3
0 to 0.2