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3103 Aluminum vs. AM60B Magnesium

3103 aluminum belongs to the aluminum alloys classification, while AM60B magnesium belongs to the magnesium alloys.

For each property being compared, the top bar is 3103 aluminum and the bottom bar is AM60B magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 27 to 62
62
Elastic (Young's, Tensile) Modulus, GPa 70
45
Elongation at Break, % 1.1 to 28
11
Fatigue Strength, MPa 38 to 83
96
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 68 to 130
140
Tensile Strength: Ultimate (UTS), MPa 100 to 220
230
Tensile Strength: Yield (Proof), MPa 39 to 200
130

Thermal Properties

Latent Heat of Fusion, J/g 400
350
Maximum Temperature: Mechanical, °C 190
120
Melting Completion (Liquidus), °C 660
620
Melting Onset (Solidus), °C 640
540
Specific Heat Capacity, J/kg-K 900
1000
Thermal Conductivity, W/m-K 160
61
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
13
Electrical Conductivity: Equal Weight (Specific), % IACS 140
72

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.8
1.7
Embodied Carbon, kg CO2/kg material 8.2
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1180
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.4 to 24
21
Resilience: Unit (Modulus of Resilience), kJ/m3 11 to 280
190
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
71
Strength to Weight: Axial, points 10 to 22
38
Strength to Weight: Bending, points 18 to 30
50
Thermal Diffusivity, mm2/s 64
37
Thermal Shock Resistance, points 4.6 to 9.9
14

Alloy Composition

Aluminum (Al), % 96.3 to 99.1
5.5 to 6.5
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.1
0 to 0.010
Iron (Fe), % 0 to 0.7
0 to 0.0050
Magnesium (Mg), % 0 to 0.3
92.6 to 94.3
Manganese (Mn), % 0.9 to 1.5
0.24 to 0.6
Nickel (Ni), % 0
0 to 0.0020
Silicon (Si), % 0 to 0.5
0 to 0.1
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.2
0 to 0.22
Zirconium (Zr), % 0 to 0.1
0
Residuals, % 0 to 0.15
0