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EN-MC21210 Magnesium vs. 7005 Aluminum

EN-MC21210 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 EN-MC21210 magnesium and the bottom bar is 7005 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
70
Elongation at Break, % 14
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 110
120 to 230
Tensile Strength: Ultimate (UTS), MPa 190
200 to 400
Tensile Strength: Yield (Proof), MPa 90
95 to 350

Thermal Properties

Latent Heat of Fusion, J/g 350
380
Maximum Temperature: Mechanical, °C 100
200
Melting Completion (Liquidus), °C 600
640
Melting Onset (Solidus), °C 570
610
Specific Heat Capacity, J/kg-K 1000
880
Thermal Conductivity, W/m-K 120
140 to 170
Thermal Expansion, µm/m-K 27
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
35 to 43
Electrical Conductivity: Equal Weight (Specific), % IACS 130
110 to 130

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 1.6
2.9
Embodied Carbon, kg CO2/kg material 24
8.3
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 980
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
32 to 57
Resilience: Unit (Modulus of Resilience), kJ/m3 92
65 to 850
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 72
47
Strength to Weight: Axial, points 32
19 to 38
Strength to Weight: Bending, points 44
26 to 41
Thermal Diffusivity, mm2/s 76
54 to 65
Thermal Shock Resistance, points 11
8.7 to 18

Alloy Composition


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Aluminum (Al), % 1.6 to 2.6
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 0.0050
0 to 0.4
Magnesium (Mg), % 96.3 to 98.3
1.0 to 1.8
Manganese (Mn), % 0.1 to 0.7
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 0.2
4.0 to 5.0
Zirconium (Zr), % 0
0.080 to 0.2
Residuals, % 0 to 0.010
0 to 0.15