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384.0 Aluminum vs. ZK51A Magnesium

384.0 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 (2, in this case) are not shown.

For each property being compared, the top bar is 384.0 aluminum and the bottom bar is ZK51A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 74
45
Elongation at Break, % 2.5
4.7
Fatigue Strength, MPa 140
62
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
18
Shear Strength, MPa 200
160
Tensile Strength: Ultimate (UTS), MPa 330
240
Tensile Strength: Yield (Proof), MPa 170
150

Thermal Properties

Latent Heat of Fusion, J/g 550
340
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 580
640
Melting Onset (Solidus), °C 530
550
Specific Heat Capacity, J/kg-K 870
970
Thermal Conductivity, W/m-K 96
110
Thermal Expansion, µm/m-K 21
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 22
28
Electrical Conductivity: Equal Weight (Specific), % IACS 69
140

Otherwise Unclassified Properties

Base Metal Price, % relative 11
13
Density, g/cm3 2.9
1.8
Embodied Carbon, kg CO2/kg material 7.4
24
Embodied Energy, MJ/kg 140
160
Embodied Water, L/kg 1010
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.9
10
Resilience: Unit (Modulus of Resilience), kJ/m3 190
260
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 49
64
Strength to Weight: Axial, points 32
36
Strength to Weight: Bending, points 37
47
Thermal Diffusivity, mm2/s 39
61
Thermal Shock Resistance, points 15
15

Alloy Composition

Aluminum (Al), % 77.3 to 86.5
0
Copper (Cu), % 3.0 to 4.5
0 to 0.1
Iron (Fe), % 0 to 1.3
0
Magnesium (Mg), % 0 to 0.1
93.1 to 95.9
Manganese (Mn), % 0 to 0.5
0
Nickel (Ni), % 0 to 0.5
0 to 0.010
Silicon (Si), % 10.5 to 12
0
Tin (Sn), % 0 to 0.35
0
Zinc (Zn), % 0 to 3.0
3.6 to 5.5
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3