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6018 Aluminum vs. AM100A Magnesium

6018 aluminum belongs to the aluminum alloys classification, while AM100A magnesium belongs to the magnesium 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 6018 aluminum and the bottom bar is AM100A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
46
Elongation at Break, % 9.0 to 9.1
1.0 to 6.8
Fatigue Strength, MPa 85 to 89
48 to 70
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 170 to 180
90 to 150
Tensile Strength: Ultimate (UTS), MPa 290 to 300
160 to 270
Tensile Strength: Yield (Proof), MPa 220 to 230
78 to 140

Thermal Properties

Latent Heat of Fusion, J/g 400
350
Maximum Temperature: Mechanical, °C 160
140
Melting Completion (Liquidus), °C 640
590
Melting Onset (Solidus), °C 570
460
Specific Heat Capacity, J/kg-K 890
990
Thermal Conductivity, W/m-K 170
73
Thermal Expansion, µm/m-K 23
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
11
Electrical Conductivity: Equal Weight (Specific), % IACS 140
59

Otherwise Unclassified Properties

Base Metal Price, % relative 10
12
Density, g/cm3 2.9
1.7
Embodied Carbon, kg CO2/kg material 8.2
22
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1180
1000

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 25
1.3 to 15
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 380
66 to 210
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 48
70
Strength to Weight: Axial, points 28 to 29
25 to 44
Strength to Weight: Bending, points 34 to 35
38 to 54
Thermal Diffusivity, mm2/s 65
43
Thermal Shock Resistance, points 13
9.7 to 17

Alloy Composition

Aluminum (Al), % 93.1 to 97.8
9.3 to 10.7
Bismuth (Bi), % 0.4 to 0.7
0
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0.15 to 0.4
0 to 0.1
Iron (Fe), % 0 to 0.7
0
Lead (Pb), % 0.4 to 1.2
0
Magnesium (Mg), % 0.6 to 1.2
87.9 to 90.6
Manganese (Mn), % 0.3 to 0.8
0.1 to 0.35
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0.5 to 1.2
0 to 0.3
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.3
0 to 0.3
Residuals, % 0
0 to 0.3

Comparable Variants