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EN-MC35110 Magnesium vs. EN 1.7039 Steel

EN-MC35110 magnesium belongs to the magnesium alloys classification, while EN 1.7039 steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, 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-MC35110 magnesium and the bottom bar is EN 1.7039 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
73
Tensile Strength: Ultimate (UTS), MPa 230
530 to 1850

Thermal Properties

Latent Heat of Fusion, J/g 330
250
Maximum Temperature: Mechanical, °C 140
420
Melting Completion (Liquidus), °C 600
1460
Melting Onset (Solidus), °C 520
1420
Specific Heat Capacity, J/kg-K 970
470
Thermal Conductivity, W/m-K 110
46
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 18
2.3
Density, g/cm3 1.9
7.8
Embodied Carbon, kg CO2/kg material 24
1.4
Embodied Energy, MJ/kg 170
19
Embodied Water, L/kg 940
51

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 63
24
Strength to Weight: Axial, points 34
19 to 65
Strength to Weight: Bending, points 44
19 to 43
Thermal Diffusivity, mm2/s 61
12
Thermal Shock Resistance, points 14
16 to 54

Alloy Composition


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Carbon (C), % 0
0.38 to 0.45
Chromium (Cr), % 0
0.9 to 1.2
Copper (Cu), % 0 to 0.030
0 to 0.25
Iron (Fe), % 0 to 0.010
96.8 to 98.1
Magnesium (Mg), % 92 to 95.4
0
Manganese (Mn), % 0 to 0.15
0.6 to 0.9
Nickel (Ni), % 0 to 0.0050
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.010
0 to 0.3
Sulfur (S), % 0
0.020 to 0.040
Unspecified Rare Earths, % 0.75 to 1.8
0
Zinc (Zn), % 3.5 to 5.0
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0