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EN-MC65210 Magnesium vs. 7129 Aluminum

EN-MC65210 magnesium belongs to the magnesium alloys classification, while 7129 Aluminum belongs to the aluminum alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN-MC65210 magnesium and the bottom bar is 7129 Aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
69
Elongation at Break, % 2.8
9.0 to 9.1
Fatigue Strength, MPa 110
150 to 190
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Shear Strength, MPa 150
250 to 260
Tensile Strength: Ultimate (UTS), MPa 270
430
Tensile Strength: Yield (Proof), MPa 200
380 to 390

Thermal Properties

Latent Heat of Fusion, J/g 340
380
Maximum Temperature: Mechanical, °C 170
180
Melting Completion (Liquidus), °C 610
630
Melting Onset (Solidus), °C 540
510
Specific Heat Capacity, J/kg-K 970
880
Thermal Conductivity, W/m-K 110
150
Thermal Expansion, µm/m-K 26
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
40
Electrical Conductivity: Equal Weight (Specific), % IACS 110
120

Otherwise Unclassified Properties

Density, g/cm3 2.0
2.9
Embodied Carbon, kg CO2/kg material 27
8.3
Embodied Energy, MJ/kg 220
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.9
37 to 38
Resilience: Unit (Modulus of Resilience), kJ/m3 450
1050 to 1090
Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 59
47
Strength to Weight: Axial, points 38
41
Strength to Weight: Bending, points 47
43 to 44
Thermal Diffusivity, mm2/s 58
58
Thermal Shock Resistance, points 17
19

Alloy Composition


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Aluminum (Al), % 0
91 to 94
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0 to 0.030
0.5 to 0.9
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 0 to 0.010
0 to 0.3
Magnesium (Mg), % 92.6 to 95.6
1.3 to 2.0
Manganese (Mn), % 0 to 0.15
0 to 0.1
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.010
0 to 0.15
Silver (Ag), % 2.0 to 3.0
0
Titanium (Ti), % 0
0 to 0.050
Unspecified Rare Earths, % 2.0 to 3.0
0
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.2
4.2 to 5.2
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.15