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AM50A Magnesium vs. 7005 Aluminum

AM50A magnesium belongs to the magnesium alloys classification, while 7005 aluminum belongs to the aluminum 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 AM50A magnesium and the bottom bar is 7005 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
70
Elongation at Break, % 11
10 to 20
Fatigue Strength, MPa 70
100 to 190
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Shear Strength, MPa 120
120 to 230
Tensile Strength: Ultimate (UTS), MPa 210
200 to 400
Tensile Strength: Yield (Proof), MPa 120
95 to 350

Thermal Properties

Latent Heat of Fusion, J/g 350
380
Maximum Temperature: Mechanical, °C 120
200
Melting Completion (Liquidus), °C 620
640
Melting Onset (Solidus), °C 570
610
Specific Heat Capacity, J/kg-K 1000
880
Thermal Conductivity, W/m-K 65
140 to 170
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
35 to 43
Electrical Conductivity: Equal Weight (Specific), % IACS 88
110 to 130

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 1.7
2.9
Embodied Carbon, kg CO2/kg material 23
8.3
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 990
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
32 to 57
Resilience: Unit (Modulus of Resilience), kJ/m3 150
65 to 850
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 71
47
Strength to Weight: Axial, points 35
19 to 38
Strength to Weight: Bending, points 47
26 to 41
Thermal Diffusivity, mm2/s 39
54 to 65
Thermal Shock Resistance, points 13
8.7 to 18

Alloy Composition


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Aluminum (Al), % 4.4 to 5.4
91 to 94.7
Chromium (Cr), % 0
0.060 to 0.2
Copper (Cu), % 0 to 0.010
0 to 0.1
Iron (Fe), % 0 to 0.0040
0 to 0.4
Magnesium (Mg), % 93.7 to 95.3
1.0 to 1.8
Manganese (Mn), % 0.26 to 0.6
0.2 to 0.7
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0 to 0.1
0 to 0.35
Titanium (Ti), % 0
0.010 to 0.060
Zinc (Zn), % 0 to 0.22
4.0 to 5.0
Zirconium (Zr), % 0
0.080 to 0.2
Residuals, % 0
0 to 0.15