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224.0 Aluminum vs. ZK51A Magnesium

224.0 aluminum belongs to the aluminum alloys classification, while ZK51A magnesium belongs to the magnesium alloys. There are 29 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 224.0 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, % 4.0 to 10
4.7
Fatigue Strength, MPa 86 to 120
62
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
18
Tensile Strength: Ultimate (UTS), MPa 380 to 420
240
Tensile Strength: Yield (Proof), MPa 280 to 330
150

Thermal Properties

Latent Heat of Fusion, J/g 390
340
Maximum Temperature: Mechanical, °C 220
120
Melting Completion (Liquidus), °C 650
640
Melting Onset (Solidus), °C 550
550
Specific Heat Capacity, J/kg-K 870
970
Thermal Conductivity, W/m-K 120
110
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
28
Electrical Conductivity: Equal Weight (Specific), % IACS 95
140

Otherwise Unclassified Properties

Base Metal Price, % relative 11
13
Density, g/cm3 3.0
1.8
Embodied Carbon, kg CO2/kg material 8.3
24
Embodied Energy, MJ/kg 160
160
Embodied Water, L/kg 1150
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 35
10
Resilience: Unit (Modulus of Resilience), kJ/m3 540 to 770
260
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
64
Strength to Weight: Axial, points 35 to 38
36
Strength to Weight: Bending, points 38 to 41
47
Thermal Diffusivity, mm2/s 47
61
Thermal Shock Resistance, points 17 to 18
15

Alloy Composition

Aluminum (Al), % 93 to 95.2
0
Copper (Cu), % 4.5 to 5.5
0 to 0.1
Iron (Fe), % 0 to 0.1
0
Magnesium (Mg), % 0
93.1 to 95.9
Manganese (Mn), % 0.2 to 0.5
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.060
0
Titanium (Ti), % 0 to 0.35
0
Vanadium (V), % 0.050 to 0.15
0
Zinc (Zn), % 0
3.6 to 5.5
Zirconium (Zr), % 0.1 to 0.25
0.5 to 1.0
Residuals, % 0
0 to 0.3