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EN-MC21210 Magnesium vs. EN 1.4439 Stainless Steel

EN-MC21210 magnesium belongs to the magnesium alloys classification, while EN 1.4439 stainless steel belongs to the iron alloys. There are 31 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-MC21210 magnesium and the bottom bar is EN 1.4439 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 48
220
Elastic (Young's, Tensile) Modulus, GPa 44
200
Elongation at Break, % 14
40
Fatigue Strength, MPa 70
270
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
79
Shear Strength, MPa 110
470
Tensile Strength: Ultimate (UTS), MPa 190
680
Tensile Strength: Yield (Proof), MPa 90
310

Thermal Properties

Latent Heat of Fusion, J/g 350
290
Maximum Temperature: Mechanical, °C 100
980
Melting Completion (Liquidus), °C 600
1460
Melting Onset (Solidus), °C 570
1410
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 120
14
Thermal Expansion, µm/m-K 27
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 130
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 12
22
Density, g/cm3 1.6
7.9
Embodied Carbon, kg CO2/kg material 24
4.5
Embodied Energy, MJ/kg 160
61
Embodied Water, L/kg 980
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
220
Resilience: Unit (Modulus of Resilience), kJ/m3 92
240
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 72
25
Strength to Weight: Axial, points 32
24
Strength to Weight: Bending, points 44
22
Thermal Diffusivity, mm2/s 76
3.8
Thermal Shock Resistance, points 11
15

Alloy Composition


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Aluminum (Al), % 1.6 to 2.6
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
16.5 to 18.5
Copper (Cu), % 0 to 0.010
0
Iron (Fe), % 0 to 0.0050
58.7 to 66.9
Magnesium (Mg), % 96.3 to 98.3
0
Manganese (Mn), % 0.1 to 0.7
0 to 2.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 0 to 0.0020
12.5 to 14.5
Nitrogen (N), % 0
0.12 to 0.22
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.010
0