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EN AC-42000 Aluminum vs. EN-MC65120 Magnesium

EN AC-42000 aluminum belongs to the aluminum alloys classification, while EN-MC65120 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 EN AC-42000 aluminum and the bottom bar is EN-MC65120 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 59 to 91
55
Elastic (Young's, Tensile) Modulus, GPa 70
45
Elongation at Break, % 1.1 to 2.4
3.1
Fatigue Strength, MPa 67 to 76
80
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Tensile Strength: Ultimate (UTS), MPa 170 to 270
160
Tensile Strength: Yield (Proof), MPa 95 to 230
110

Thermal Properties

Latent Heat of Fusion, J/g 500
330
Maximum Temperature: Mechanical, °C 170
180
Melting Completion (Liquidus), °C 610
590
Melting Onset (Solidus), °C 600
520
Specific Heat Capacity, J/kg-K 900
970
Thermal Conductivity, W/m-K 160
100
Thermal Expansion, µm/m-K 22
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
25
Electrical Conductivity: Equal Weight (Specific), % IACS 130
120

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
25
Density, g/cm3 2.6
1.9
Embodied Carbon, kg CO2/kg material 8.0
25
Embodied Energy, MJ/kg 150
190
Embodied Water, L/kg 1110
930

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.8 to 5.7
4.4
Resilience: Unit (Modulus of Resilience), kJ/m3 64 to 370
140
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 53
62
Strength to Weight: Axial, points 18 to 28
23
Strength to Weight: Bending, points 26 to 35
34
Thermal Diffusivity, mm2/s 66
56
Thermal Shock Resistance, points 7.9 to 12
9.8

Alloy Composition

Aluminum (Al), % 89.9 to 93.3
0
Copper (Cu), % 0 to 0.2
0 to 0.030
Iron (Fe), % 0 to 0.55
0 to 0.010
Lead (Pb), % 0 to 0.15
0
Magnesium (Mg), % 0.2 to 0.65
91.8 to 95.1
Manganese (Mn), % 0 to 0.35
0 to 0.15
Nickel (Ni), % 0 to 0.15
0 to 0.0050
Silicon (Si), % 6.5 to 7.5
0 to 0.010
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0 to 0.25
0
Unspecified Rare Earths, % 0
2.5 to 4.0
Zinc (Zn), % 0 to 0.15
2.0 to 3.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.010