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EN 1.3555 Steel vs. ISO-WD21150 Magnesium

EN 1.3555 steel belongs to the iron alloys classification, while ISO-WD21150 magnesium belongs to the magnesium alloys. There are 22 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 1.3555 steel and the bottom bar is ISO-WD21150 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
45
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 75
17
Tensile Strength: Ultimate (UTS), MPa 770
240 to 290

Thermal Properties

Latent Heat of Fusion, J/g 260
350
Maximum Temperature: Mechanical, °C 540
110
Melting Completion (Liquidus), °C 1500
600
Melting Onset (Solidus), °C 1450
550
Specific Heat Capacity, J/kg-K 460
990
Thermal Expansion, µm/m-K 13
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.3
19
Electrical Conductivity: Equal Weight (Specific), % IACS 11
100

Otherwise Unclassified Properties

Base Metal Price, % relative 11
12
Density, g/cm3 7.9
1.7
Embodied Carbon, kg CO2/kg material 5.6
23
Embodied Energy, MJ/kg 81
160
Embodied Water, L/kg 90
980

Common Calculations

Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
70
Strength to Weight: Axial, points 27
40 to 48
Strength to Weight: Bending, points 23
52 to 58
Thermal Shock Resistance, points 22
15 to 17

Alloy Composition

Aluminum (Al), % 0
2.4 to 3.6
Carbon (C), % 0.1 to 0.15
0
Chromium (Cr), % 3.9 to 4.3
0
Copper (Cu), % 0 to 0.1
0 to 0.050
Iron (Fe), % 85.4 to 87.7
0 to 0.0050
Magnesium (Mg), % 0
94 to 97
Manganese (Mn), % 0.15 to 0.35
0.15 to 0.4
Molybdenum (Mo), % 4.0 to 4.5
0
Nickel (Ni), % 3.2 to 3.6
0 to 0.0050
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0.1 to 0.25
0 to 0.1
Sulfur (S), % 0 to 0.010
0
Tungsten (W), % 0 to 0.15
0
Vanadium (V), % 1.0 to 1.3
0
Zinc (Zn), % 0
0.5 to 1.5
Residuals, % 0
0 to 0.3