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EN-MC32110 Magnesium vs. SAE-AISI M46 Steel

EN-MC32110 magnesium belongs to the magnesium alloys classification, while SAE-AISI M46 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is EN-MC32110 magnesium and the bottom bar is SAE-AISI M46 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 49
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 19
77
Tensile Strength: Ultimate (UTS), MPa 220
800 to 2300

Thermal Properties

Latent Heat of Fusion, J/g 330
270
Melting Completion (Liquidus), °C 600
1540
Melting Onset (Solidus), °C 500
1500
Specific Heat Capacity, J/kg-K 950
450
Thermal Conductivity, W/m-K 120
18
Thermal Expansion, µm/m-K 26
12

Otherwise Unclassified Properties

Base Metal Price, % relative 13
33
Density, g/cm3 2.1
8.1
Embodied Carbon, kg CO2/kg material 22
12
Embodied Energy, MJ/kg 150
180
Embodied Water, L/kg 920
150

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 58
24
Strength to Weight: Axial, points 29
27 to 78
Strength to Weight: Bending, points 38
24 to 48
Thermal Diffusivity, mm2/s 58
4.9
Thermal Shock Resistance, points 12
25 to 71

Alloy Composition


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Aluminum (Al), % 0 to 0.2
0
Carbon (C), % 0
1.2 to 1.3
Chromium (Cr), % 0
3.7 to 4.2
Cobalt (Co), % 0
7.8 to 8.8
Copper (Cu), % 2.4 to 3.0
0 to 0.25
Iron (Fe), % 0 to 0.050
70 to 73.8
Magnesium (Mg), % 89.3 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0.2 to 0.4
Molybdenum (Mo), % 0
8.0 to 8.5
Nickel (Ni), % 0 to 0.010
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.2
0.4 to 0.65
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 0
1.9 to 2.2
Vanadium (V), % 0
3.0 to 3.3
Zinc (Zn), % 5.5 to 6.5
0
Residuals, % 0 to 0.010
0