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EN AC-51200 Aluminum vs. EN-MC21230 Magnesium

EN AC-51200 aluminum belongs to the aluminum alloys classification, while EN-MC21230 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-51200 aluminum and the bottom bar is EN-MC21230 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
63
Elastic (Young's, Tensile) Modulus, GPa 67
45
Elongation at Break, % 1.1
10
Fatigue Strength, MPa 100
99
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 25
18
Tensile Strength: Ultimate (UTS), MPa 220
220
Tensile Strength: Yield (Proof), MPa 150
140

Thermal Properties

Latent Heat of Fusion, J/g 410
350
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 640
600
Melting Onset (Solidus), °C 570
520
Specific Heat Capacity, J/kg-K 910
1000
Thermal Conductivity, W/m-K 92
72
Thermal Expansion, µm/m-K 23
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 22
12
Electrical Conductivity: Equal Weight (Specific), % IACS 74
63

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.6
1.7
Embodied Carbon, kg CO2/kg material 9.6
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1150
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.2
19
Resilience: Unit (Modulus of Resilience), kJ/m3 160
200
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 51
71
Strength to Weight: Axial, points 24
36
Strength to Weight: Bending, points 31
48
Thermal Diffusivity, mm2/s 39
43
Thermal Shock Resistance, points 10
13

Alloy Composition


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Aluminum (Al), % 84.5 to 92
5.5 to 8.5
Copper (Cu), % 0 to 0.1
0 to 0.010
Iron (Fe), % 0 to 1.0
0 to 0.0050
Lead (Pb), % 0 to 0.1
0
Magnesium (Mg), % 8.0 to 10.5
90.5 to 94.4
Manganese (Mn), % 0 to 0.55
0.1 to 0.6
Nickel (Ni), % 0 to 0.1
0 to 0.0020
Silicon (Si), % 0 to 2.5
0 to 0.1
Tin (Sn), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.25
0 to 0.3
Residuals, % 0 to 0.15
0 to 0.010