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EN-MC21320 Magnesium vs. EN 1.3543 Stainless Steel

EN-MC21320 magnesium belongs to the magnesium alloys classification, while EN 1.3543 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (8, 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-MC21320 magnesium and the bottom bar is EN 1.3543 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 68
220
Elastic (Young's, Tensile) Modulus, GPa 45
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
76
Tensile Strength: Ultimate (UTS), MPa 230
730

Thermal Properties

Latent Heat of Fusion, J/g 370
280
Maximum Temperature: Mechanical, °C 110
870
Melting Completion (Liquidus), °C 600
1430
Melting Onset (Solidus), °C 530
1390
Specific Heat Capacity, J/kg-K 1000
480
Thermal Conductivity, W/m-K 66
22
Thermal Expansion, µm/m-K 26
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 91
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.0
Density, g/cm3 1.6
7.7
Embodied Carbon, kg CO2/kg material 23
2.3
Embodied Energy, MJ/kg 160
32
Embodied Water, L/kg 980
120

Common Calculations

Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 72
25
Strength to Weight: Axial, points 38
27
Strength to Weight: Bending, points 50
24
Thermal Diffusivity, mm2/s 40
6.1
Thermal Shock Resistance, points 13
26

Alloy Composition


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Aluminum (Al), % 3.5 to 5.0
0
Carbon (C), % 0
1.0 to 1.2
Chromium (Cr), % 0
16 to 18
Copper (Cu), % 0 to 0.010
0
Iron (Fe), % 0 to 0.0050
79.1 to 83.6
Magnesium (Mg), % 92.5 to 95.9
0
Manganese (Mn), % 0.1 to 0.7
0 to 1.0
Molybdenum (Mo), % 0
0.4 to 0.8
Nickel (Ni), % 0 to 0.0020
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.5 to 1.5
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.010
0