MakeItFrom.com
Menu (ESC)

5449 Aluminum vs. ZK40A Magnesium

5449 aluminum belongs to the aluminum alloys classification, while ZK40A magnesium belongs to the magnesium alloys.

For each property being compared, the top bar is 5449 aluminum and the bottom bar is ZK40A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
45
Elongation at Break, % 4.0 to 17
4.2
Fatigue Strength, MPa 78 to 120
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 130 to 190
160
Tensile Strength: Ultimate (UTS), MPa 210 to 330
280
Tensile Strength: Yield (Proof), MPa 91 to 260
260

Thermal Properties

Latent Heat of Fusion, J/g 400
340
Maximum Temperature: Mechanical, °C 190
120
Melting Completion (Liquidus), °C 650
600
Melting Onset (Solidus), °C 590
540
Specific Heat Capacity, J/kg-K 900
970
Thermal Conductivity, W/m-K 140
110
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
27
Electrical Conductivity: Equal Weight (Specific), % IACS 110
130

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.8
1.8
Embodied Carbon, kg CO2/kg material 8.5
24
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1180
950

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 29
12
Resilience: Unit (Modulus of Resilience), kJ/m3 60 to 480
740
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
65
Strength to Weight: Axial, points 22 to 33
43
Strength to Weight: Bending, points 29 to 39
53
Thermal Diffusivity, mm2/s 56
62
Thermal Shock Resistance, points 9.4 to 15
17

Alloy Composition

Aluminum (Al), % 94.1 to 97.8
0
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 0 to 0.7
0
Magnesium (Mg), % 1.6 to 2.6
94.2 to 96.1
Manganese (Mn), % 0.6 to 1.1
0
Silicon (Si), % 0 to 0.4
0
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.3
3.5 to 4.5
Zirconium (Zr), % 0
0.45 to 1.0
Residuals, % 0
0 to 0.3