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ISO-WD32250 Magnesium vs. EN 1.4123 Stainless Steel

ISO-WD32250 magnesium belongs to the magnesium alloys classification, while EN 1.4123 stainless steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (9, 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 ISO-WD32250 magnesium and the bottom bar is EN 1.4123 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
77
Tensile Strength: Ultimate (UTS), MPa 310 to 330
720 to 810

Thermal Properties

Latent Heat of Fusion, J/g 340
280
Maximum Temperature: Mechanical, °C 120
840
Melting Completion (Liquidus), °C 600
1450
Melting Onset (Solidus), °C 550
1410
Specific Heat Capacity, J/kg-K 980
480
Thermal Conductivity, W/m-K 130
23
Thermal Expansion, µm/m-K 26
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 130
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 13
10
Density, g/cm3 1.8
7.7
Embodied Carbon, kg CO2/kg material 24
4.2
Embodied Energy, MJ/kg 160
62
Embodied Water, L/kg 950
120

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 67
25
Strength to Weight: Axial, points 49 to 51
26 to 29
Strength to Weight: Bending, points 58 to 60
23 to 25
Thermal Diffusivity, mm2/s 72
6.3
Thermal Shock Resistance, points 19 to 20
26 to 29

Alloy Composition


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Carbon (C), % 0
0.35 to 0.5
Chromium (Cr), % 0
14 to 16.5
Iron (Fe), % 0
76.7 to 84.6
Magnesium (Mg), % 94.9 to 97.1
0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
1.0 to 2.5
Nickel (Ni), % 0
0 to 0.5
Nitrogen (N), % 0
0.1 to 0.3
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Vanadium (V), % 0
0 to 1.5
Zinc (Zn), % 2.5 to 4.0
0
Zirconium (Zr), % 0.45 to 0.8
0
Residuals, % 0 to 0.3
0