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EN-MC32110 Magnesium vs. S32808 Stainless Steel

EN-MC32110 magnesium belongs to the magnesium alloys classification, while S32808 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 S32808 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60
270
Elastic (Young's, Tensile) Modulus, GPa 49
210
Elongation at Break, % 2.2
17
Fatigue Strength, MPa 80
350
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 19
81
Shear Strength, MPa 120
480
Tensile Strength: Ultimate (UTS), MPa 220
780
Tensile Strength: Yield (Proof), MPa 140
570

Thermal Properties

Latent Heat of Fusion, J/g 330
300
Maximum Temperature: Mechanical, °C 99
1100
Melting Completion (Liquidus), °C 600
1470
Melting Onset (Solidus), °C 500
1420
Specific Heat Capacity, J/kg-K 950
480
Thermal Conductivity, W/m-K 120
14
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 13
24
Density, g/cm3 2.1
7.9
Embodied Carbon, kg CO2/kg material 22
4.0
Embodied Energy, MJ/kg 150
57
Embodied Water, L/kg 920
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.3
120
Resilience: Unit (Modulus of Resilience), kJ/m3 210
790
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 58
25
Strength to Weight: Axial, points 29
27
Strength to Weight: Bending, points 38
24
Thermal Diffusivity, mm2/s 58
3.8
Thermal Shock Resistance, points 12
21

Alloy Composition


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Aluminum (Al), % 0 to 0.2
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
27 to 27.9
Copper (Cu), % 2.4 to 3.0
0
Iron (Fe), % 0 to 0.050
58.1 to 62.8
Magnesium (Mg), % 89.3 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0 to 1.1
Molybdenum (Mo), % 0
0.8 to 1.2
Nickel (Ni), % 0 to 0.010
7.0 to 8.2
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.2
0 to 0.5
Sulfur (S), % 0
0 to 0.010
Tungsten (W), % 0
2.1 to 2.5
Zinc (Zn), % 5.5 to 6.5
0
Residuals, % 0 to 0.010
0