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EN-MC65220 Magnesium vs. EN 1.4422 Stainless Steel

EN-MC65220 magnesium belongs to the magnesium alloys classification, while EN 1.4422 stainless steel belongs to the iron alloys. There are 29 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-MC65220 magnesium and the bottom bar is EN 1.4422 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
200
Elongation at Break, % 2.2
17
Fatigue Strength, MPa 110
380
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
76
Shear Strength, MPa 150
520
Tensile Strength: Ultimate (UTS), MPa 270
850
Tensile Strength: Yield (Proof), MPa 200
630

Thermal Properties

Latent Heat of Fusion, J/g 340
270
Maximum Temperature: Mechanical, °C 160
760
Melting Completion (Liquidus), °C 610
1450
Melting Onset (Solidus), °C 550
1410
Specific Heat Capacity, J/kg-K 980
470
Thermal Conductivity, W/m-K 110
16
Thermal Expansion, µm/m-K 26
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 120
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 80
11
Density, g/cm3 1.9
7.9
Embodied Carbon, kg CO2/kg material 27
2.7
Embodied Energy, MJ/kg 210
37

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
130
Resilience: Unit (Modulus of Resilience), kJ/m3 450
1000
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 62
25
Strength to Weight: Axial, points 40
30
Strength to Weight: Bending, points 49
25
Thermal Diffusivity, mm2/s 61
4.3
Thermal Shock Resistance, points 17
31

Alloy Composition


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Carbon (C), % 0
0 to 0.020
Chromium (Cr), % 0
11 to 13
Copper (Cu), % 0.050 to 0.1
0.2 to 0.8
Iron (Fe), % 0 to 0.010
76.8 to 83.5
Magnesium (Mg), % 93.8 to 96.8
0
Manganese (Mn), % 0 to 0.15
0 to 2.0
Molybdenum (Mo), % 0
1.3 to 1.8
Nickel (Ni), % 0 to 0.0050
4.0 to 5.0
Nitrogen (N), % 0
0 to 0.020
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 0.0030
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