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5252 Aluminum vs. ZK61A Magnesium

5252 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 5252 aluminum and the bottom bar is ZK61A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
46
Elongation at Break, % 4.5 to 11
5.8 to 7.1
Fatigue Strength, MPa 100 to 110
120 to 140
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 25
18
Shear Strength, MPa 140 to 160
170 to 180
Tensile Strength: Ultimate (UTS), MPa 230 to 290
290 to 310
Tensile Strength: Yield (Proof), MPa 170 to 240
180 to 200

Thermal Properties

Latent Heat of Fusion, J/g 400
330
Maximum Temperature: Mechanical, °C 180
120
Melting Completion (Liquidus), °C 650
640
Melting Onset (Solidus), °C 610
530
Specific Heat Capacity, J/kg-K 910
960
Thermal Conductivity, W/m-K 140
120
Thermal Expansion, µm/m-K 24
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
29
Electrical Conductivity: Equal Weight (Specific), % IACS 120
130

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.7
1.9
Embodied Carbon, kg CO2/kg material 8.7
23
Embodied Energy, MJ/kg 160
160
Embodied Water, L/kg 1190
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 23
15 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 430
370 to 420
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
62
Strength to Weight: Axial, points 23 to 30
42 to 45
Strength to Weight: Bending, points 31 to 36
50 to 53
Thermal Diffusivity, mm2/s 57
65
Thermal Shock Resistance, points 10 to 13
17 to 18

Alloy Composition

Aluminum (Al), % 96.6 to 97.8
0
Copper (Cu), % 0 to 0.1
0 to 0.1
Iron (Fe), % 0 to 0.1
0
Magnesium (Mg), % 2.2 to 2.8
92.1 to 93.9
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.080
0
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.050
5.5 to 6.5
Zirconium (Zr), % 0
0.6 to 1.0
Residuals, % 0
0 to 0.3