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EN AC-46400 Aluminum vs. ZK61A Magnesium

EN AC-46400 aluminum belongs to the aluminum alloys classification, while ZK61A magnesium belongs to the magnesium alloys. There are 29 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 EN AC-46400 aluminum and the bottom bar is ZK61A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
46
Elongation at Break, % 1.1 to 1.7
5.8 to 7.1
Fatigue Strength, MPa 75 to 85
120 to 140
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
18
Tensile Strength: Ultimate (UTS), MPa 170 to 310
290 to 310
Tensile Strength: Yield (Proof), MPa 110 to 270
180 to 200

Thermal Properties

Latent Heat of Fusion, J/g 520
330
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 610
640
Melting Onset (Solidus), °C 570
530
Specific Heat Capacity, J/kg-K 890
960
Thermal Conductivity, W/m-K 130
120
Thermal Expansion, µm/m-K 22
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
29
Electrical Conductivity: Equal Weight (Specific), % IACS 110
130

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.7
1.9
Embodied Carbon, kg CO2/kg material 7.8
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1070
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.7 to 4.9
15 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 82 to 500
370 to 420
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 52
62
Strength to Weight: Axial, points 18 to 32
42 to 45
Strength to Weight: Bending, points 26 to 38
50 to 53
Thermal Diffusivity, mm2/s 55
65
Thermal Shock Resistance, points 7.8 to 14
17 to 18

Alloy Composition

Aluminum (Al), % 85.4 to 90.5
0
Copper (Cu), % 0.8 to 1.3
0 to 0.1
Iron (Fe), % 0 to 0.8
0
Lead (Pb), % 0 to 0.1
0
Magnesium (Mg), % 0.25 to 0.65
92.1 to 93.9
Manganese (Mn), % 0.15 to 0.55
0
Nickel (Ni), % 0 to 0.2
0 to 0.010
Silicon (Si), % 8.3 to 9.7
0
Tin (Sn), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.8
5.5 to 6.5
Zirconium (Zr), % 0
0.6 to 1.0
Residuals, % 0
0 to 0.3

Comparable Variants