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EN-MC35110 Magnesium vs. 7049A Aluminum

EN-MC35110 magnesium belongs to the magnesium alloys classification, while 7049A 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-MC35110 magnesium and the bottom bar is 7049A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
71
Elongation at Break, % 3.1
5.0 to 5.7
Fatigue Strength, MPa 110
180
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 18
27
Shear Strength, MPa 130
340 to 350
Tensile Strength: Ultimate (UTS), MPa 230
580 to 590
Tensile Strength: Yield (Proof), MPa 150
500 to 530

Thermal Properties

Latent Heat of Fusion, J/g 330
370
Maximum Temperature: Mechanical, °C 140
200
Melting Completion (Liquidus), °C 600
640
Melting Onset (Solidus), °C 520
430
Specific Heat Capacity, J/kg-K 970
850
Thermal Conductivity, W/m-K 110
130
Thermal Expansion, µm/m-K 26
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
40
Electrical Conductivity: Equal Weight (Specific), % IACS 130
120

Otherwise Unclassified Properties

Base Metal Price, % relative 18
10
Density, g/cm3 1.9
3.1
Embodied Carbon, kg CO2/kg material 24
8.2
Embodied Energy, MJ/kg 170
150
Embodied Water, L/kg 940
1100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.3
28 to 32
Resilience: Unit (Modulus of Resilience), kJ/m3 260
1800 to 1990
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 63
44
Strength to Weight: Axial, points 34
52 to 53
Strength to Weight: Bending, points 44
50 to 51
Thermal Diffusivity, mm2/s 61
50
Thermal Shock Resistance, points 14
25

Alloy Composition

Aluminum (Al), % 0
84.6 to 89.5
Chromium (Cr), % 0
0.050 to 0.25
Copper (Cu), % 0 to 0.030
1.2 to 1.9
Iron (Fe), % 0 to 0.010
0 to 0.5
Magnesium (Mg), % 92 to 95.4
2.1 to 3.1
Manganese (Mn), % 0 to 0.15
0 to 0.5
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.010
0 to 0.4
Titanium (Ti), % 0
0 to 0.25
Unspecified Rare Earths, % 0.75 to 1.8
0
Zinc (Zn), % 3.5 to 5.0
7.2 to 8.4
Zirconium (Zr), % 0.4 to 1.0
0 to 0.25
Residuals, % 0 to 0.010
0 to 0.15