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EN 1.3558 Steel vs. ISO-WD32350 Magnesium

EN 1.3558 steel belongs to the iron alloys classification, while ISO-WD32350 magnesium belongs to the magnesium alloys. There are 24 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 1.3558 steel and the bottom bar is ISO-WD32350 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
45
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 80
18
Tensile Strength: Ultimate (UTS), MPa 770
250 to 290

Thermal Properties

Latent Heat of Fusion, J/g 240
340
Maximum Temperature: Mechanical, °C 490
95
Melting Completion (Liquidus), °C 1810
600
Melting Onset (Solidus), °C 1760
560
Specific Heat Capacity, J/kg-K 410
990
Thermal Conductivity, W/m-K 20
130
Thermal Expansion, µm/m-K 12
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
25
Electrical Conductivity: Equal Weight (Specific), % IACS 12
130

Otherwise Unclassified Properties

Base Metal Price, % relative 45
12
Density, g/cm3 9.3
1.7
Embodied Carbon, kg CO2/kg material 8.4
23
Embodied Energy, MJ/kg 130
160
Embodied Water, L/kg 90
960

Common Calculations

Stiffness to Weight: Axial, points 12
15
Stiffness to Weight: Bending, points 21
68
Strength to Weight: Axial, points 23
39 to 46
Strength to Weight: Bending, points 20
50 to 55
Thermal Diffusivity, mm2/s 5.3
73
Thermal Shock Resistance, points 22
16 to 18

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Carbon (C), % 0.7 to 0.8
0
Chromium (Cr), % 3.9 to 4.3
0
Copper (Cu), % 0 to 0.3
0 to 0.1
Iron (Fe), % 73.7 to 77.6
0 to 0.060
Magnesium (Mg), % 0
95.7 to 97.7
Manganese (Mn), % 0 to 0.4
0.6 to 1.3
Molybdenum (Mo), % 0 to 0.6
0
Nickel (Ni), % 0
0 to 0.0050
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.4
0 to 0.1
Sulfur (S), % 0 to 0.015
0
Tungsten (W), % 17.5 to 19
0
Vanadium (V), % 1.0 to 1.3
0
Zinc (Zn), % 0
1.8 to 2.3
Residuals, % 0
0 to 0.3