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AM50A Magnesium vs. 2007 Aluminum

AM50A magnesium belongs to the magnesium alloys classification, while 2007 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is AM50A magnesium and the bottom bar is 2007 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
71
Elongation at Break, % 11
5.6 to 8.0
Fatigue Strength, MPa 70
91 to 110
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
27
Shear Strength, MPa 120
220 to 250
Tensile Strength: Ultimate (UTS), MPa 210
370 to 420
Tensile Strength: Yield (Proof), MPa 120
240 to 270

Thermal Properties

Latent Heat of Fusion, J/g 350
390
Maximum Temperature: Mechanical, °C 120
190
Melting Completion (Liquidus), °C 620
640
Melting Onset (Solidus), °C 570
510
Specific Heat Capacity, J/kg-K 1000
870
Thermal Conductivity, W/m-K 65
130
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
47
Electrical Conductivity: Equal Weight (Specific), % IACS 88
140

Otherwise Unclassified Properties

Base Metal Price, % relative 12
11
Density, g/cm3 1.7
3.1
Embodied Carbon, kg CO2/kg material 23
8.0
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 990
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
21 to 26
Resilience: Unit (Modulus of Resilience), kJ/m3 150
390 to 530
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 71
44
Strength to Weight: Axial, points 35
33 to 38
Strength to Weight: Bending, points 47
37 to 40
Thermal Diffusivity, mm2/s 39
48
Thermal Shock Resistance, points 13
16 to 19

Alloy Composition


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Aluminum (Al), % 4.4 to 5.4
87.5 to 95
Bismuth (Bi), % 0
0 to 0.2
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0 to 0.010
3.3 to 4.6
Iron (Fe), % 0 to 0.0040
0 to 0.8
Lead (Pb), % 0
0.8 to 1.5
Magnesium (Mg), % 93.7 to 95.3
0.4 to 1.8
Manganese (Mn), % 0.26 to 0.6
0.5 to 1.0
Nickel (Ni), % 0 to 0.0020
0 to 0.2
Silicon (Si), % 0 to 0.1
0 to 0.8
Tin (Sn), % 0
0 to 0.2
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0 to 0.22
0 to 0.8
Residuals, % 0
0 to 0.3