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5040 Aluminum vs. AM60A Magnesium

5040 aluminum belongs to the aluminum alloys classification, while AM60A magnesium belongs to the magnesium alloys.

For each property being compared, the top bar is 5040 aluminum and the bottom bar is AM60A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 66 to 74
62
Elastic (Young's, Tensile) Modulus, GPa 70
45
Elongation at Break, % 5.7 to 6.8
8.8
Fatigue Strength, MPa 100 to 130
70
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 140 to 150
130
Tensile Strength: Ultimate (UTS), MPa 240 to 260
230
Tensile Strength: Yield (Proof), MPa 190 to 230
130

Thermal Properties

Latent Heat of Fusion, J/g 400
350
Maximum Temperature: Mechanical, °C 190
120
Melting Completion (Liquidus), °C 650
620
Melting Onset (Solidus), °C 600
550
Specific Heat Capacity, J/kg-K 900
1000
Thermal Conductivity, W/m-K 160
62
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 41
13
Electrical Conductivity: Equal Weight (Specific), % IACS 130
69

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.8
1.7
Embodied Carbon, kg CO2/kg material 8.3
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1180
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14 to 15
17
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 380
190
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
71
Strength to Weight: Axial, points 24 to 26
37
Strength to Weight: Bending, points 31 to 32
49
Thermal Diffusivity, mm2/s 64
37
Thermal Shock Resistance, points 10 to 11
14

Alloy Composition


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Aluminum (Al), % 95.2 to 98
5.5 to 6.5
Chromium (Cr), % 0.1 to 0.3
0
Copper (Cu), % 0 to 0.25
0 to 0.35
Iron (Fe), % 0 to 0.7
0
Magnesium (Mg), % 1.0 to 1.5
91.8 to 94.4
Manganese (Mn), % 0.9 to 1.4
0.13 to 0.6
Nickel (Ni), % 0
0 to 0.030
Silicon (Si), % 0 to 0.3
0 to 0.5
Zinc (Zn), % 0 to 0.25
0 to 0.22
Residuals, % 0 to 0.15
0