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EN-MC21310 Magnesium vs. 3105 Aluminum

EN-MC21310 magnesium belongs to the magnesium alloys classification, while 3105 aluminum belongs to the aluminum alloys. There are 31 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-MC21310 magnesium and the bottom bar is 3105 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60
29 to 67
Elastic (Young's, Tensile) Modulus, GPa 45
69
Elongation at Break, % 9.0
1.1 to 20
Fatigue Strength, MPa 86
39 to 95
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Shear Strength, MPa 120
77 to 140
Tensile Strength: Ultimate (UTS), MPa 200
120 to 240
Tensile Strength: Yield (Proof), MPa 120
46 to 220

Thermal Properties

Latent Heat of Fusion, J/g 360
400
Maximum Temperature: Mechanical, °C 100
180
Melting Completion (Liquidus), °C 600
660
Melting Onset (Solidus), °C 560
640
Specific Heat Capacity, J/kg-K 1000
900
Thermal Conductivity, W/m-K 89
170
Thermal Expansion, µm/m-K 26
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 22
44
Electrical Conductivity: Equal Weight (Specific), % IACS 120
140

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 1.6
2.8
Embodied Carbon, kg CO2/kg material 23
8.2
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 970
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16
2.6 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 160
15 to 340
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 73
50
Strength to Weight: Axial, points 34
12 to 24
Strength to Weight: Bending, points 47
20 to 31
Thermal Diffusivity, mm2/s 55
68
Thermal Shock Resistance, points 12
5.2 to 11

Alloy Composition


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Aluminum (Al), % 1.8 to 2.6
96 to 99.5
Chromium (Cr), % 0
0 to 0.2
Copper (Cu), % 0 to 0.010
0 to 0.3
Iron (Fe), % 0 to 0.0050
0 to 0.7
Magnesium (Mg), % 95.2 to 97.4
0.2 to 0.8
Manganese (Mn), % 0.1 to 0.7
0.3 to 0.8
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0.7 to 1.2
0 to 0.6
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0 to 0.2
0 to 0.4
Residuals, % 0 to 0.010
0 to 0.15