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EN-MC21320 Magnesium vs. EN 1.3555 Steel

EN-MC21320 magnesium belongs to the magnesium alloys classification, while EN 1.3555 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, 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 1.3555 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 68
230
Elastic (Young's, Tensile) Modulus, GPa 45
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
75
Tensile Strength: Ultimate (UTS), MPa 230
770

Thermal Properties

Latent Heat of Fusion, J/g 370
260
Maximum Temperature: Mechanical, °C 110
540
Melting Completion (Liquidus), °C 600
1500
Melting Onset (Solidus), °C 530
1450
Specific Heat Capacity, J/kg-K 1000
460
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
9.3
Electrical Conductivity: Equal Weight (Specific), % IACS 91
11

Otherwise Unclassified Properties

Base Metal Price, % relative 12
11
Density, g/cm3 1.6
7.9
Embodied Carbon, kg CO2/kg material 23
5.6
Embodied Energy, MJ/kg 160
81
Embodied Water, L/kg 980
90

Common Calculations

Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 72
24
Strength to Weight: Axial, points 38
27
Strength to Weight: Bending, points 50
23
Thermal Shock Resistance, points 13
22

Alloy Composition


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Aluminum (Al), % 3.5 to 5.0
0
Carbon (C), % 0
0.1 to 0.15
Chromium (Cr), % 0
3.9 to 4.3
Copper (Cu), % 0 to 0.010
0 to 0.1
Iron (Fe), % 0 to 0.0050
85.4 to 87.7
Magnesium (Mg), % 92.5 to 95.9
0
Manganese (Mn), % 0.1 to 0.7
0.15 to 0.35
Molybdenum (Mo), % 0
4.0 to 4.5
Nickel (Ni), % 0 to 0.0020
3.2 to 3.6
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0.5 to 1.5
0.1 to 0.25
Sulfur (S), % 0
0 to 0.010
Tungsten (W), % 0
0 to 0.15
Vanadium (V), % 0
1.0 to 1.3
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.010
0