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EN-MC32110 Magnesium vs. 705.0 Aluminum

EN-MC32110 magnesium belongs to the magnesium alloys classification, while 705.0 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-MC32110 magnesium and the bottom bar is 705.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60
62 to 65
Elastic (Young's, Tensile) Modulus, GPa 49
69
Elongation at Break, % 2.2
8.4 to 10
Fatigue Strength, MPa 80
63 to 98
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 19
26
Tensile Strength: Ultimate (UTS), MPa 220
240 to 260
Tensile Strength: Yield (Proof), MPa 140
130

Thermal Properties

Latent Heat of Fusion, J/g 330
390
Maximum Temperature: Mechanical, °C 99
180
Melting Completion (Liquidus), °C 600
640
Melting Onset (Solidus), °C 500
610
Specific Heat Capacity, J/kg-K 950
890
Thermal Conductivity, W/m-K 120
140
Thermal Expansion, µm/m-K 26
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
34
Electrical Conductivity: Equal Weight (Specific), % IACS 140
110

Otherwise Unclassified Properties

Base Metal Price, % relative 13
9.5
Density, g/cm3 2.1
2.8
Embodied Carbon, kg CO2/kg material 22
8.4
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 920
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.3
18 to 20
Resilience: Unit (Modulus of Resilience), kJ/m3 210
120 to 130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 58
49
Strength to Weight: Axial, points 29
24 to 26
Strength to Weight: Bending, points 38
31 to 32
Thermal Diffusivity, mm2/s 58
55
Thermal Shock Resistance, points 12
11

Alloy Composition

Aluminum (Al), % 0 to 0.2
92.3 to 98.6
Chromium (Cr), % 0
0 to 0.4
Copper (Cu), % 2.4 to 3.0
0 to 0.2
Iron (Fe), % 0 to 0.050
0 to 0.8
Magnesium (Mg), % 89.3 to 91.9
1.4 to 1.8
Manganese (Mn), % 0.25 to 0.75
0 to 0.6
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0 to 0.2
0 to 0.2
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 5.5 to 6.5
0 to 3.3
Residuals, % 0
0 to 0.15