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5059 Aluminum vs. ZK61A Magnesium

5059 aluminum belongs to the aluminum alloys classification, while ZK61A magnesium belongs to the magnesium 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 5059 aluminum and the bottom bar is ZK61A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
46
Elongation at Break, % 11 to 25
5.8 to 7.1
Fatigue Strength, MPa 170 to 240
120 to 140
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 220 to 250
170 to 180
Tensile Strength: Ultimate (UTS), MPa 350 to 410
290 to 310
Tensile Strength: Yield (Proof), MPa 170 to 300
180 to 200

Thermal Properties

Latent Heat of Fusion, J/g 390
330
Maximum Temperature: Mechanical, °C 210
120
Melting Completion (Liquidus), °C 650
640
Melting Onset (Solidus), °C 510
530
Specific Heat Capacity, J/kg-K 900
960
Thermal Conductivity, W/m-K 110
120
Thermal Expansion, µm/m-K 24
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
29
Electrical Conductivity: Equal Weight (Specific), % IACS 95
130

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.7
1.9
Embodied Carbon, kg CO2/kg material 9.1
23
Embodied Energy, MJ/kg 160
160
Embodied Water, L/kg 1160
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 42 to 75
15 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 650
370 to 420
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
62
Strength to Weight: Axial, points 36 to 42
42 to 45
Strength to Weight: Bending, points 41 to 45
50 to 53
Thermal Diffusivity, mm2/s 44
65
Thermal Shock Resistance, points 16 to 18
17 to 18

Alloy Composition

Aluminum (Al), % 89.9 to 94
0
Chromium (Cr), % 0 to 0.25
0
Copper (Cu), % 0 to 0.25
0 to 0.1
Iron (Fe), % 0 to 0.5
0
Magnesium (Mg), % 5.0 to 6.0
92.1 to 93.9
Manganese (Mn), % 0.6 to 1.2
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.45
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0.4 to 0.9
5.5 to 6.5
Zirconium (Zr), % 0.050 to 0.25
0.6 to 1.0
Residuals, % 0
0 to 0.3