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EN-MC32110 Magnesium vs. EN 1.4123 Stainless Steel

EN-MC32110 magnesium belongs to the magnesium alloys classification, while EN 1.4123 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (8, 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 EN 1.4123 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60
220 to 250
Elastic (Young's, Tensile) Modulus, GPa 49
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 19
77
Tensile Strength: Ultimate (UTS), MPa 220
720 to 810

Thermal Properties

Latent Heat of Fusion, J/g 330
280
Maximum Temperature: Mechanical, °C 99
840
Melting Completion (Liquidus), °C 600
1450
Melting Onset (Solidus), °C 500
1410
Specific Heat Capacity, J/kg-K 950
480
Thermal Conductivity, W/m-K 120
23
Thermal Expansion, µm/m-K 26
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 13
10
Density, g/cm3 2.1
7.7
Embodied Carbon, kg CO2/kg material 22
4.2
Embodied Energy, MJ/kg 150
62
Embodied Water, L/kg 920
120

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 58
25
Strength to Weight: Axial, points 29
26 to 29
Strength to Weight: Bending, points 38
23 to 25
Thermal Diffusivity, mm2/s 58
6.3
Thermal Shock Resistance, points 12
26 to 29

Alloy Composition


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Aluminum (Al), % 0 to 0.2
0
Carbon (C), % 0
0.35 to 0.5
Chromium (Cr), % 0
14 to 16.5
Copper (Cu), % 2.4 to 3.0
0
Iron (Fe), % 0 to 0.050
76.7 to 84.6
Magnesium (Mg), % 89.3 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0 to 1.0
Molybdenum (Mo), % 0
1.0 to 2.5
Nickel (Ni), % 0 to 0.010
0 to 0.5
Nitrogen (N), % 0
0.1 to 0.3
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.2
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Vanadium (V), % 0
0 to 1.5
Zinc (Zn), % 5.5 to 6.5
0
Residuals, % 0 to 0.010
0