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EN-MC65220 Magnesium vs. EN 1.4490 Stainless Steel

EN-MC65220 magnesium belongs to the magnesium alloys classification, while EN 1.4490 stainless steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, 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 1.4490 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
200
Elongation at Break, % 2.2
34
Fatigue Strength, MPa 110
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
78
Tensile Strength: Ultimate (UTS), MPa 270
560
Tensile Strength: Yield (Proof), MPa 200
260

Thermal Properties

Latent Heat of Fusion, J/g 340
300
Maximum Temperature: Mechanical, °C 160
990
Melting Completion (Liquidus), °C 610
1440
Melting Onset (Solidus), °C 550
1390
Specific Heat Capacity, J/kg-K 980
480
Thermal Conductivity, W/m-K 110
15
Thermal Expansion, µm/m-K 26
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 120
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 80
19
Density, g/cm3 1.9
7.8
Embodied Carbon, kg CO2/kg material 27
3.7
Embodied Energy, MJ/kg 210
52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
160
Resilience: Unit (Modulus of Resilience), kJ/m3 450
170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 62
25
Strength to Weight: Axial, points 40
20
Strength to Weight: Bending, points 49
19
Thermal Diffusivity, mm2/s 61
4.1
Thermal Shock Resistance, points 17
16

Alloy Composition


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Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
18 to 20
Copper (Cu), % 0.050 to 0.1
0
Iron (Fe), % 0 to 0.010
61.7 to 70.9
Magnesium (Mg), % 93.8 to 96.8
0
Manganese (Mn), % 0 to 0.15
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 2.5
Nickel (Ni), % 0 to 0.0050
9.0 to 12
Nitrogen (N), % 0
0.12 to 0.2
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.010
0 to 1.5
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