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EN-MC65220 Magnesium vs. EN 1.4424 Stainless Steel

EN-MC65220 magnesium belongs to the magnesium alloys classification, while EN 1.4424 stainless steel belongs to the iron alloys. There are 30 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-MC65220 magnesium and the bottom bar is EN 1.4424 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
230
Elastic (Young's, Tensile) Modulus, GPa 44
200
Elongation at Break, % 2.2
28
Fatigue Strength, MPa 110
350 to 370
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
78
Shear Strength, MPa 150
520
Tensile Strength: Ultimate (UTS), MPa 270
800
Tensile Strength: Yield (Proof), MPa 200
480 to 500

Thermal Properties

Latent Heat of Fusion, J/g 340
310
Maximum Temperature: Mechanical, °C 160
960
Melting Completion (Liquidus), °C 610
1430
Melting Onset (Solidus), °C 550
1390
Specific Heat Capacity, J/kg-K 980
480
Thermal Conductivity, W/m-K 110
13
Thermal Expansion, µm/m-K 26
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 120
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 80
15
Density, g/cm3 1.9
7.7
Embodied Carbon, kg CO2/kg material 27
3.4
Embodied Energy, MJ/kg 210
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
190 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 450
580 to 640
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 62
25
Strength to Weight: Axial, points 40
29
Strength to Weight: Bending, points 49
25
Thermal Diffusivity, mm2/s 61
3.5
Thermal Shock Resistance, points 17
23

Alloy Composition


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Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
18 to 19
Copper (Cu), % 0.050 to 0.1
0
Iron (Fe), % 0 to 0.010
68.6 to 72.4
Magnesium (Mg), % 93.8 to 96.8
0
Manganese (Mn), % 0 to 0.15
1.2 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.0
Nickel (Ni), % 0 to 0.0050
4.5 to 5.2
Nitrogen (N), % 0
0.050 to 0.1
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.010
1.4 to 2.0
Silver (Ag), % 1.3 to 1.7
0
Sulfur (S), % 0
0 to 0.015
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