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AM50A Magnesium vs. 7050 Aluminum

AM50A magnesium belongs to the magnesium alloys classification, while 7050 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 7050 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
70
Elongation at Break, % 11
2.2 to 12
Fatigue Strength, MPa 70
130 to 210
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 17
26
Shear Strength, MPa 120
280 to 330
Tensile Strength: Ultimate (UTS), MPa 210
490 to 570
Tensile Strength: Yield (Proof), MPa 120
390 to 500

Thermal Properties

Latent Heat of Fusion, J/g 350
370
Maximum Temperature: Mechanical, °C 120
190
Melting Completion (Liquidus), °C 620
630
Melting Onset (Solidus), °C 570
490
Specific Heat Capacity, J/kg-K 1000
860
Thermal Conductivity, W/m-K 65
140
Thermal Expansion, µm/m-K 26
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
35
Electrical Conductivity: Equal Weight (Specific), % IACS 88
100

Otherwise Unclassified Properties

Base Metal Price, % relative 12
10
Density, g/cm3 1.7
3.1
Embodied Carbon, kg CO2/kg material 23
8.2
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 990
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
10 to 55
Resilience: Unit (Modulus of Resilience), kJ/m3 150
1110 to 1760
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 71
45
Strength to Weight: Axial, points 35
45 to 51
Strength to Weight: Bending, points 47
45 to 50
Thermal Diffusivity, mm2/s 39
54
Thermal Shock Resistance, points 13
21 to 25

Alloy Composition


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Aluminum (Al), % 4.4 to 5.4
87.3 to 92.1
Chromium (Cr), % 0
0 to 0.040
Copper (Cu), % 0 to 0.010
2.0 to 2.6
Iron (Fe), % 0 to 0.0040
0 to 0.15
Magnesium (Mg), % 93.7 to 95.3
1.9 to 2.6
Manganese (Mn), % 0.26 to 0.6
0 to 0.1
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0 to 0.1
0 to 0.12
Titanium (Ti), % 0
0 to 0.060
Zinc (Zn), % 0 to 0.22
5.7 to 6.7
Zirconium (Zr), % 0
0.080 to 0.15
Residuals, % 0
0 to 0.15