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3003 Aluminum vs. EN-MC65120 Magnesium

3003 aluminum belongs to the aluminum alloys classification, while EN-MC65120 magnesium belongs to the magnesium 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 3003 aluminum and the bottom bar is EN-MC65120 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 28 to 65
55
Elastic (Young's, Tensile) Modulus, GPa 70
45
Elongation at Break, % 1.1 to 28
3.1
Fatigue Strength, MPa 39 to 90
80
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 68 to 130
92
Tensile Strength: Ultimate (UTS), MPa 110 to 240
160
Tensile Strength: Yield (Proof), MPa 40 to 210
110

Thermal Properties

Latent Heat of Fusion, J/g 400
330
Maximum Temperature: Mechanical, °C 180
180
Melting Completion (Liquidus), °C 650
590
Melting Onset (Solidus), °C 640
520
Specific Heat Capacity, J/kg-K 900
970
Thermal Conductivity, W/m-K 180
100
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
25
Electrical Conductivity: Equal Weight (Specific), % IACS 140
120

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
25
Density, g/cm3 2.8
1.9
Embodied Carbon, kg CO2/kg material 8.1
25
Embodied Energy, MJ/kg 150
190
Embodied Water, L/kg 1180
930

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 0.95 to 63
4.4
Resilience: Unit (Modulus of Resilience), kJ/m3 11 to 300
140
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
62
Strength to Weight: Axial, points 11 to 24
23
Strength to Weight: Bending, points 18 to 30
34
Thermal Diffusivity, mm2/s 71
56
Thermal Shock Resistance, points 4.7 to 10
9.8

Alloy Composition

Aluminum (Al), % 96.8 to 99
0
Copper (Cu), % 0.050 to 0.2
0 to 0.030
Iron (Fe), % 0 to 0.7
0 to 0.010
Magnesium (Mg), % 0
91.8 to 95.1
Manganese (Mn), % 1.0 to 1.5
0 to 0.15
Nickel (Ni), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.6
0 to 0.010
Unspecified Rare Earths, % 0
2.5 to 4.0
Zinc (Zn), % 0 to 0.1
2.0 to 3.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.010