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EN-MC32110 Magnesium vs. S36200 Stainless Steel

EN-MC32110 magnesium belongs to the magnesium alloys classification, while S36200 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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 S36200 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 49
190
Elongation at Break, % 2.2
3.4 to 4.6
Fatigue Strength, MPa 80
450 to 570
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 19
76
Shear Strength, MPa 120
680 to 810
Tensile Strength: Ultimate (UTS), MPa 220
1180 to 1410
Tensile Strength: Yield (Proof), MPa 140
960 to 1240

Thermal Properties

Latent Heat of Fusion, J/g 330
280
Maximum Temperature: Mechanical, °C 99
820
Melting Completion (Liquidus), °C 600
1440
Melting Onset (Solidus), °C 500
1400
Specific Heat Capacity, J/kg-K 950
480
Thermal Conductivity, W/m-K 120
16
Thermal Expansion, µm/m-K 26
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 13
12
Density, g/cm3 2.1
7.8
Embodied Carbon, kg CO2/kg material 22
2.8
Embodied Energy, MJ/kg 150
40
Embodied Water, L/kg 920
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.3
46 to 51
Resilience: Unit (Modulus of Resilience), kJ/m3 210
2380 to 3930
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 58
25
Strength to Weight: Axial, points 29
42 to 50
Strength to Weight: Bending, points 38
32 to 36
Thermal Diffusivity, mm2/s 58
4.3
Thermal Shock Resistance, points 12
40 to 48

Alloy Composition


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Aluminum (Al), % 0 to 0.2
0 to 0.1
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
14 to 14.5
Copper (Cu), % 2.4 to 3.0
0
Iron (Fe), % 0 to 0.050
75.4 to 79.5
Magnesium (Mg), % 89.3 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0 to 0.5
Molybdenum (Mo), % 0
0 to 0.3
Nickel (Ni), % 0 to 0.010
6.5 to 7.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.2
0 to 0.3
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0
0.6 to 0.9
Zinc (Zn), % 5.5 to 6.5
0
Residuals, % 0 to 0.010
0