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EN-MC65220 Magnesium vs. EN 1.4020 Stainless Steel

EN-MC65220 magnesium belongs to the magnesium alloys classification, while EN 1.4020 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, 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 1.4020 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
190 to 340
Elastic (Young's, Tensile) Modulus, GPa 44
200
Elongation at Break, % 2.2
13 to 34
Fatigue Strength, MPa 110
340 to 540
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
77
Shear Strength, MPa 150
510 to 680
Tensile Strength: Ultimate (UTS), MPa 270
770 to 1130
Tensile Strength: Yield (Proof), MPa 200
430 to 950

Thermal Properties

Latent Heat of Fusion, J/g 340
280
Maximum Temperature: Mechanical, °C 160
890
Melting Completion (Liquidus), °C 610
1390
Melting Onset (Solidus), °C 550
1350
Specific Heat Capacity, J/kg-K 980
480
Thermal Expansion, µm/m-K 26
17

Otherwise Unclassified Properties

Base Metal Price, % relative 80
11
Density, g/cm3 1.9
7.6
Embodied Carbon, kg CO2/kg material 27
2.5
Embodied Energy, MJ/kg 210
37

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
140 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 450
460 to 2290
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 62
25
Strength to Weight: Axial, points 40
28 to 41
Strength to Weight: Bending, points 49
25 to 32
Thermal Shock Resistance, points 17
16 to 23

Alloy Composition


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Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
16.5 to 19
Copper (Cu), % 0.050 to 0.1
0
Iron (Fe), % 0 to 0.010
62.8 to 71.8
Magnesium (Mg), % 93.8 to 96.8
0
Manganese (Mn), % 0 to 0.15
11 to 14
Nickel (Ni), % 0 to 0.0050
0.5 to 2.5
Nitrogen (N), % 0
0.2 to 0.45
Phosphorus (P), % 0
0 to 0.045
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