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296.0 Aluminum vs. ZK51A Magnesium

296.0 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 (3, in this case) are not shown.

For each property being compared, the top bar is 296.0 aluminum and the bottom bar is ZK51A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
45
Elongation at Break, % 3.2 to 7.1
4.7
Fatigue Strength, MPa 47 to 70
62
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
18
Tensile Strength: Ultimate (UTS), MPa 260 to 270
240
Tensile Strength: Yield (Proof), MPa 120 to 180
150

Thermal Properties

Latent Heat of Fusion, J/g 420
340
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 630
640
Melting Onset (Solidus), °C 540
550
Specific Heat Capacity, J/kg-K 870
970
Thermal Conductivity, W/m-K 130 to 150
110
Thermal Expansion, µm/m-K 22
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33 to 37
28
Electrical Conductivity: Equal Weight (Specific), % IACS 99 to 110
140

Otherwise Unclassified Properties

Base Metal Price, % relative 11
13
Density, g/cm3 3.0
1.8
Embodied Carbon, kg CO2/kg material 7.8
24
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1110
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.6 to 15
10
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 220
260
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
64
Strength to Weight: Axial, points 24 to 25
36
Strength to Weight: Bending, points 30 to 31
47
Thermal Diffusivity, mm2/s 51 to 56
61
Thermal Shock Resistance, points 12
15

Alloy Composition

Aluminum (Al), % 89 to 94
0
Copper (Cu), % 4.0 to 5.0
0 to 0.1
Iron (Fe), % 0 to 1.2
0
Magnesium (Mg), % 0 to 0.050
93.1 to 95.9
Manganese (Mn), % 0 to 0.35
0
Nickel (Ni), % 0 to 0.35
0 to 0.010
Silicon (Si), % 2.0 to 3.0
0
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.5
3.6 to 5.5
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3