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ZK40A Magnesium vs. 712.0 Aluminum

ZK40A magnesium belongs to the magnesium alloys classification, while 712.0 aluminum belongs to the aluminum alloys. There are 30 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 712.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
70
Elongation at Break, % 4.2
4.5 to 4.7
Fatigue Strength, MPa 190
140 to 180
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 17
27
Shear Strength, MPa 160
180
Tensile Strength: Ultimate (UTS), MPa 280
250 to 260
Tensile Strength: Yield (Proof), MPa 260
180 to 200

Thermal Properties

Latent Heat of Fusion, J/g 340
380
Maximum Temperature: Mechanical, °C 120
190
Melting Completion (Liquidus), °C 600
640
Melting Onset (Solidus), °C 540
610
Specific Heat Capacity, J/kg-K 970
870
Thermal Conductivity, W/m-K 110
160
Thermal Expansion, µm/m-K 26
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
40
Electrical Conductivity: Equal Weight (Specific), % IACS 130
120

Otherwise Unclassified Properties

Base Metal Price, % relative 13
9.5
Density, g/cm3 1.8
3.0
Embodied Carbon, kg CO2/kg material 24
8.0
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 950
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
11
Resilience: Unit (Modulus of Resilience), kJ/m3 740
240 to 270
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 65
46
Strength to Weight: Axial, points 43
24 to 25
Strength to Weight: Bending, points 53
30 to 31
Thermal Diffusivity, mm2/s 62
62
Thermal Shock Resistance, points 17
11

Alloy Composition


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Aluminum (Al), % 0
90.7 to 94
Chromium (Cr), % 0
0.4 to 0.6
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0
0 to 0.5
Magnesium (Mg), % 94.2 to 96.1
0.5 to 0.65
Manganese (Mn), % 0
0 to 0.1
Silicon (Si), % 0
0 to 0.3
Titanium (Ti), % 0
0.15 to 0.25
Zinc (Zn), % 3.5 to 4.5
5.0 to 6.5
Zirconium (Zr), % 0.45 to 1.0
0
Residuals, % 0 to 0.3
0 to 0.2