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206.0 Aluminum vs. ZK51A Magnesium

206.0 aluminum belongs to the aluminum alloys classification, while ZK51A magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is 206.0 aluminum and the bottom bar is ZK51A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
45
Elongation at Break, % 8.4 to 12
4.7
Fatigue Strength, MPa 88 to 210
62
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
18
Shear Strength, MPa 260
160
Tensile Strength: Ultimate (UTS), MPa 330 to 440
240
Tensile Strength: Yield (Proof), MPa 190 to 350
150

Thermal Properties

Latent Heat of Fusion, J/g 390
340
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 650
640
Melting Onset (Solidus), °C 570
550
Specific Heat Capacity, J/kg-K 880
970
Thermal Conductivity, W/m-K 120
110
Thermal Expansion, µm/m-K 19
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
28
Electrical Conductivity: Equal Weight (Specific), % IACS 99
140

Otherwise Unclassified Properties

Base Metal Price, % relative 11
13
Density, g/cm3 3.0
1.8
Embodied Carbon, kg CO2/kg material 8.0
24
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1150
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 49
10
Resilience: Unit (Modulus of Resilience), kJ/m3 270 to 840
260
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
64
Strength to Weight: Axial, points 30 to 40
36
Strength to Weight: Bending, points 35 to 42
47
Thermal Diffusivity, mm2/s 46
61
Thermal Shock Resistance, points 17 to 23
15

Alloy Composition

Aluminum (Al), % 93.3 to 95.3
0
Copper (Cu), % 4.2 to 5.0
0 to 0.1
Iron (Fe), % 0 to 0.15
0
Magnesium (Mg), % 0.15 to 0.35
93.1 to 95.9
Manganese (Mn), % 0.2 to 0.5
0
Nickel (Ni), % 0 to 0.050
0 to 0.010
Silicon (Si), % 0 to 0.1
0
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0.15 to 0.3
0
Zinc (Zn), % 0 to 0.1
3.6 to 5.5
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3