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EN-MC65220 Magnesium vs. EN 1.4477 Stainless Steel

EN-MC65220 magnesium belongs to the magnesium alloys classification, while EN 1.4477 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 1.4477 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
270
Elastic (Young's, Tensile) Modulus, GPa 44
210
Elongation at Break, % 2.2
22 to 23
Fatigue Strength, MPa 110
420 to 490
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 17
81
Shear Strength, MPa 150
550 to 580
Tensile Strength: Ultimate (UTS), MPa 270
880 to 930
Tensile Strength: Yield (Proof), MPa 200
620 to 730

Thermal Properties

Latent Heat of Fusion, J/g 340
300
Maximum Temperature: Mechanical, °C 160
1100
Melting Completion (Liquidus), °C 610
1430
Melting Onset (Solidus), °C 550
1380
Specific Heat Capacity, J/kg-K 980
480
Thermal Conductivity, W/m-K 110
13
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
20
Density, g/cm3 1.9
7.7
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
180 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 450
940 to 1290
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 62
25
Strength to Weight: Axial, points 40
31 to 33
Strength to Weight: Bending, points 49
26 to 27
Thermal Diffusivity, mm2/s 61
3.5
Thermal Shock Resistance, points 17
23 to 25

Alloy Composition


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Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
28 to 30
Copper (Cu), % 0.050 to 0.1
0 to 0.8
Iron (Fe), % 0 to 0.010
56.6 to 63.6
Magnesium (Mg), % 93.8 to 96.8
0
Manganese (Mn), % 0 to 0.15
0.8 to 1.5
Molybdenum (Mo), % 0
1.5 to 2.6
Nickel (Ni), % 0 to 0.0050
5.8 to 7.5
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.010
0 to 0.5
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