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EN-MC65220 Magnesium vs. S45500 Stainless Steel

EN-MC65220 magnesium belongs to the magnesium alloys classification, while S45500 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (10, 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-MC65220 magnesium and the bottom bar is S45500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
280 to 500
Elastic (Young's, Tensile) Modulus, GPa 44
190
Elongation at Break, % 2.2
3.4 to 11
Fatigue Strength, MPa 110
570 to 890
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
75
Shear Strength, MPa 150
790 to 1090
Tensile Strength: Ultimate (UTS), MPa 270
1370 to 1850
Tensile Strength: Yield (Proof), MPa 200
1240 to 1700

Thermal Properties

Latent Heat of Fusion, J/g 340
270
Maximum Temperature: Mechanical, °C 160
760
Melting Completion (Liquidus), °C 610
1440
Melting Onset (Solidus), °C 550
1400
Specific Heat Capacity, J/kg-K 980
470
Thermal Expansion, µm/m-K 26
11

Otherwise Unclassified Properties

Base Metal Price, % relative 80
17
Density, g/cm3 1.9
7.9
Embodied Carbon, kg CO2/kg material 27
3.8
Embodied Energy, MJ/kg 210
57

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
45 to 190
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 62
24
Strength to Weight: Axial, points 40
48 to 65
Strength to Weight: Bending, points 49
35 to 42
Thermal Shock Resistance, points 17
48 to 64

Alloy Composition


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Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
11 to 12.5
Copper (Cu), % 0.050 to 0.1
1.5 to 2.5
Iron (Fe), % 0 to 0.010
71.5 to 79.2
Magnesium (Mg), % 93.8 to 96.8
0
Manganese (Mn), % 0 to 0.15
0 to 0.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.0050
7.5 to 9.5
Niobium (Nb), % 0
0 to 0.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.010
0 to 0.5
Silver (Ag), % 1.3 to 1.7
0
Sulfur (S), % 0
0 to 0.030
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
0.8 to 1.4
Unspecified Rare Earths, % 1.5 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