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EN-MC32110 Magnesium vs. S44625 Stainless Steel

EN-MC32110 magnesium belongs to the magnesium alloys classification, while S44625 stainless steel belongs to the iron alloys. There are 30 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 S44625 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 49
200
Elongation at Break, % 2.2
22
Fatigue Strength, MPa 80
240
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 19
80
Shear Strength, MPa 120
370
Tensile Strength: Ultimate (UTS), MPa 220
590
Tensile Strength: Yield (Proof), MPa 140
360

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Mechanical, °C 99
1100
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
17
Thermal Expansion, µm/m-K 26
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 13
14
Density, g/cm3 2.1
7.7
Embodied Carbon, kg CO2/kg material 22
2.8
Embodied Energy, MJ/kg 150
39
Embodied Water, L/kg 920
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.3
110
Resilience: Unit (Modulus of Resilience), kJ/m3 210
310
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 58
25
Strength to Weight: Axial, points 29
21
Strength to Weight: Bending, points 38
20
Thermal Diffusivity, mm2/s 58
4.6
Thermal Shock Resistance, points 12
19

Alloy Composition


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Aluminum (Al), % 0 to 0.2
0
Carbon (C), % 0
0 to 0.010
Chromium (Cr), % 0
25 to 27.5
Copper (Cu), % 2.4 to 3.0
0 to 0.2
Iron (Fe), % 0 to 0.050
69.4 to 74.3
Magnesium (Mg), % 89.3 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0 to 0.4
Molybdenum (Mo), % 0
0.75 to 1.5
Nickel (Ni), % 0 to 0.010
0 to 0.5
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.2
0 to 0.4
Sulfur (S), % 0
0 to 0.020
Zinc (Zn), % 5.5 to 6.5
0
Residuals, % 0 to 0.010
0