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EN 1.6553 Steel vs. EN-MC65120 Magnesium

EN 1.6553 steel belongs to the iron alloys classification, while EN-MC65120 magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 1.6553 steel and the bottom bar is EN-MC65120 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 240
55
Elastic (Young's, Tensile) Modulus, GPa 190
45
Elongation at Break, % 19 to 21
3.1
Fatigue Strength, MPa 330 to 460
80
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
17
Tensile Strength: Ultimate (UTS), MPa 710 to 800
160
Tensile Strength: Yield (Proof), MPa 470 to 670
110

Thermal Properties

Latent Heat of Fusion, J/g 250
330
Maximum Temperature: Mechanical, °C 420
180
Melting Completion (Liquidus), °C 1460
590
Melting Onset (Solidus), °C 1420
520
Specific Heat Capacity, J/kg-K 470
970
Thermal Conductivity, W/m-K 39
100
Thermal Expansion, µm/m-K 13
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
25
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
120

Otherwise Unclassified Properties

Base Metal Price, % relative 2.7
25
Density, g/cm3 7.8
1.9
Embodied Carbon, kg CO2/kg material 1.6
25
Embodied Energy, MJ/kg 21
190
Embodied Water, L/kg 51
930

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 150
4.4
Resilience: Unit (Modulus of Resilience), kJ/m3 600 to 1190
140
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
62
Strength to Weight: Axial, points 25 to 28
23
Strength to Weight: Bending, points 23 to 24
34
Thermal Diffusivity, mm2/s 10
56
Thermal Shock Resistance, points 21 to 23
9.8

Alloy Composition

Carbon (C), % 0.23 to 0.28
0
Chromium (Cr), % 0.4 to 0.8
0
Copper (Cu), % 0 to 0.3
0 to 0.030
Iron (Fe), % 95.6 to 98.2
0 to 0.010
Magnesium (Mg), % 0
91.8 to 95.1
Manganese (Mn), % 0.6 to 1.0
0 to 0.15
Molybdenum (Mo), % 0.15 to 0.3
0
Nickel (Ni), % 0.4 to 0.8
0 to 0.0050
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.8
0 to 0.010
Sulfur (S), % 0 to 0.025
0
Unspecified Rare Earths, % 0
2.5 to 4.0
Vanadium (V), % 0 to 0.030
0
Zinc (Zn), % 0
2.0 to 3.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.010