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EN-MC65210 Magnesium vs. S44625 Stainless Steel

EN-MC65210 magnesium belongs to the magnesium alloys classification, while S44625 stainless steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, 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-MC65210 magnesium and the bottom bar is S44625 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
200
Elongation at Break, % 2.8
22
Fatigue Strength, MPa 110
240
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 17
80
Shear Strength, MPa 150
370
Tensile Strength: Ultimate (UTS), MPa 270
590
Tensile Strength: Yield (Proof), MPa 200
360

Thermal Properties

Latent Heat of Fusion, J/g 340
290
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 610
1440
Melting Onset (Solidus), °C 540
1400
Specific Heat Capacity, J/kg-K 970
480
Thermal Conductivity, W/m-K 110
17
Thermal Expansion, µm/m-K 26
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 110
2.6

Otherwise Unclassified Properties

Density, g/cm3 2.0
7.7
Embodied Carbon, kg CO2/kg material 27
2.8
Embodied Energy, MJ/kg 220
39

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.9
110
Resilience: Unit (Modulus of Resilience), kJ/m3 450
310
Stiffness to Weight: Axial, points 12
15
Stiffness to Weight: Bending, points 59
25
Strength to Weight: Axial, points 38
21
Strength to Weight: Bending, points 47
20
Thermal Diffusivity, mm2/s 58
4.6
Thermal Shock Resistance, points 17
19

Alloy Composition


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Carbon (C), % 0
0 to 0.010
Chromium (Cr), % 0
25 to 27.5
Copper (Cu), % 0 to 0.030
0 to 0.2
Iron (Fe), % 0 to 0.010
69.4 to 74.3
Magnesium (Mg), % 92.6 to 95.6
0
Manganese (Mn), % 0 to 0.15
0 to 0.4
Molybdenum (Mo), % 0
0.75 to 1.5
Nickel (Ni), % 0 to 0.0050
0 to 0.5
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.010
0 to 0.4
Silver (Ag), % 2.0 to 3.0
0
Sulfur (S), % 0
0 to 0.020
Unspecified Rare Earths, % 2.0 to 3.0
0
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0