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EN 1.3518 Steel vs. EQ21A Magnesium

EN 1.3518 steel belongs to the iron alloys classification, while EQ21A magnesium belongs to the magnesium alloys. There are 24 material properties with values for both materials. Properties with values for just one material (10, 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 1.3518 steel and the bottom bar is EQ21A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
80
Elastic (Young's, Tensile) Modulus, GPa 190
44
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
17
Tensile Strength: Ultimate (UTS), MPa 630
250

Thermal Properties

Latent Heat of Fusion, J/g 260
340
Maximum Temperature: Mechanical, °C 420
160
Melting Completion (Liquidus), °C 1440
640
Melting Onset (Solidus), °C 1400
560
Specific Heat Capacity, J/kg-K 480
980
Thermal Conductivity, W/m-K 43
110
Thermal Expansion, µm/m-K 13
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
25
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
120

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
80
Density, g/cm3 7.8
1.9
Embodied Carbon, kg CO2/kg material 1.5
27
Embodied Energy, MJ/kg 20
210

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
63
Strength to Weight: Axial, points 23
37
Strength to Weight: Bending, points 21
47
Thermal Diffusivity, mm2/s 12
62
Thermal Shock Resistance, points 19
15

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Carbon (C), % 0.93 to 1.1
0
Chromium (Cr), % 0.9 to 1.2
0
Copper (Cu), % 0 to 0.3
0.050 to 0.1
Iron (Fe), % 96.3 to 97.8
0
Magnesium (Mg), % 0
93.9 to 96.8
Manganese (Mn), % 0.9 to 1.2
0
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0
0 to 0.010
Oxygen (O), % 0 to 0.0015
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.45 to 0.75
0
Silver (Ag), % 0
1.3 to 1.7
Sulfur (S), % 0 to 0.030
0
Unspecified Rare Earths, % 0
1.5 to 3.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3