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EN-MC95310 Magnesium vs. 7178 Aluminum

EN-MC95310 magnesium belongs to the magnesium alloys classification, while 7178 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 EN-MC95310 magnesium and the bottom bar is 7178 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
71
Elongation at Break, % 2.2
4.5 to 12
Fatigue Strength, MPa 110
120 to 210
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 17
27
Shear Strength, MPa 160
140 to 380
Tensile Strength: Ultimate (UTS), MPa 280
240 to 640
Tensile Strength: Yield (Proof), MPa 190
120 to 560

Thermal Properties

Latent Heat of Fusion, J/g 330
370
Maximum Temperature: Mechanical, °C 170
180
Melting Completion (Liquidus), °C 650
630
Melting Onset (Solidus), °C 540
480
Specific Heat Capacity, J/kg-K 960
860
Thermal Conductivity, W/m-K 51
130
Thermal Expansion, µm/m-K 25
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
31
Electrical Conductivity: Equal Weight (Specific), % IACS 50
91

Otherwise Unclassified Properties

Base Metal Price, % relative 34
10
Density, g/cm3 1.9
3.1
Embodied Carbon, kg CO2/kg material 29
8.2
Embodied Energy, MJ/kg 260
150
Embodied Water, L/kg 900
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.6
24 to 52
Resilience: Unit (Modulus of Resilience), kJ/m3 420
110 to 2220
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 61
45
Strength to Weight: Axial, points 40
21 to 58
Strength to Weight: Bending, points 49
28 to 54
Thermal Diffusivity, mm2/s 28
47
Thermal Shock Resistance, points 18
10 to 28

Alloy Composition


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Aluminum (Al), % 0
85.4 to 89.5
Chromium (Cr), % 0
0.18 to 0.28
Copper (Cu), % 0 to 0.030
1.6 to 2.4
Iron (Fe), % 0 to 0.010
0 to 0.5
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 88.9 to 93.4
2.4 to 3.1
Manganese (Mn), % 0 to 0.15
0 to 0.3
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.010
0 to 0.4
Titanium (Ti), % 0
0 to 0.2
Unspecified Rare Earths, % 1.5 to 4.0
0
Yttrium (Y), % 4.8 to 5.5
0
Zinc (Zn), % 0 to 0.2
6.3 to 7.3
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.15