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EN-MC65220 Magnesium vs. EN 1.4669 Stainless Steel

EN-MC65220 magnesium belongs to the magnesium alloys classification, while EN 1.4669 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 1.4669 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
260
Elastic (Young's, Tensile) Modulus, GPa 44
200
Elongation at Break, % 2.2
28
Fatigue Strength, MPa 110
330
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 17
78
Shear Strength, MPa 150
500
Tensile Strength: Ultimate (UTS), MPa 270
780
Tensile Strength: Yield (Proof), MPa 200
450

Thermal Properties

Latent Heat of Fusion, J/g 340
290
Maximum Temperature: Mechanical, °C 160
1030
Melting Completion (Liquidus), °C 610
1420
Melting Onset (Solidus), °C 550
1370
Specific Heat Capacity, J/kg-K 980
480
Thermal Conductivity, W/m-K 110
15
Thermal Expansion, µm/m-K 26
13

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
13
Density, g/cm3 1.9
7.7
Embodied Carbon, kg CO2/kg material 27
2.6
Embodied Energy, MJ/kg 210
38

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
190
Resilience: Unit (Modulus of Resilience), kJ/m3 450
510
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 62
25
Strength to Weight: Axial, points 40
28
Strength to Weight: Bending, points 49
24
Thermal Diffusivity, mm2/s 61
4.0
Thermal Shock Resistance, points 17
21

Alloy Composition


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Carbon (C), % 0
0 to 0.045
Chromium (Cr), % 0
21.5 to 24
Copper (Cu), % 0.050 to 0.1
1.6 to 3.0
Iron (Fe), % 0 to 0.010
65.2 to 74.8
Magnesium (Mg), % 93.8 to 96.8
0
Manganese (Mn), % 0 to 0.15
1.0 to 3.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.0050
1.0 to 3.0
Nitrogen (N), % 0
0.12 to 0.2
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.010
0 to 1.0
Silver (Ag), % 1.3 to 1.7
0
Sulfur (S), % 0
0 to 0.030
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