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EN-MC35110 Magnesium vs. S20161 Stainless Steel

EN-MC35110 magnesium belongs to the magnesium alloys classification, while S20161 stainless steel belongs to the iron alloys. There are 31 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-MC35110 magnesium and the bottom bar is S20161 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 63
250
Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 3.1
46
Fatigue Strength, MPa 110
360
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
76
Shear Strength, MPa 130
690
Tensile Strength: Ultimate (UTS), MPa 230
980
Tensile Strength: Yield (Proof), MPa 150
390

Thermal Properties

Latent Heat of Fusion, J/g 330
330
Maximum Temperature: Mechanical, °C 140
870
Melting Completion (Liquidus), °C 600
1380
Melting Onset (Solidus), °C 520
1330
Specific Heat Capacity, J/kg-K 970
490
Thermal Conductivity, W/m-K 110
15
Thermal Expansion, µm/m-K 26
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 130
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 18
12
Density, g/cm3 1.9
7.5
Embodied Carbon, kg CO2/kg material 24
2.7
Embodied Energy, MJ/kg 170
39
Embodied Water, L/kg 940
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.3
360
Resilience: Unit (Modulus of Resilience), kJ/m3 260
390
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 63
26
Strength to Weight: Axial, points 34
36
Strength to Weight: Bending, points 44
29
Thermal Diffusivity, mm2/s 61
4.0
Thermal Shock Resistance, points 14
22

Alloy Composition


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Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
15 to 18
Copper (Cu), % 0 to 0.030
0
Iron (Fe), % 0 to 0.010
65.6 to 73.9
Magnesium (Mg), % 92 to 95.4
0
Manganese (Mn), % 0 to 0.15
4.0 to 6.0
Nickel (Ni), % 0 to 0.0050
4.0 to 6.0
Nitrogen (N), % 0
0.080 to 0.2
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.010
3.0 to 4.0
Sulfur (S), % 0
0 to 0.040
Unspecified Rare Earths, % 0.75 to 1.8
0
Zinc (Zn), % 3.5 to 5.0
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0