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EN 1.7230 Steel vs. EN-MC21220 Magnesium

EN 1.7230 steel belongs to the iron alloys classification, while EN-MC21220 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 1.7230 steel and the bottom bar is EN-MC21220 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 270
58
Elastic (Young's, Tensile) Modulus, GPa 190
45
Elongation at Break, % 11 to 12
11
Fatigue Strength, MPa 320 to 460
89
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
17
Tensile Strength: Ultimate (UTS), MPa 720 to 910
210
Tensile Strength: Yield (Proof), MPa 510 to 740
120

Thermal Properties

Latent Heat of Fusion, J/g 250
350
Maximum Temperature: Mechanical, °C 420
120
Melting Completion (Liquidus), °C 1460
600
Melting Onset (Solidus), °C 1420
540
Specific Heat Capacity, J/kg-K 470
1000
Thermal Conductivity, W/m-K 44
65
Thermal Expansion, µm/m-K 13
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
16
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
87

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
12
Density, g/cm3 7.8
1.7
Embodied Carbon, kg CO2/kg material 1.5
23
Embodied Energy, MJ/kg 20
160
Embodied Water, L/kg 51
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79 to 97
20
Resilience: Unit (Modulus of Resilience), kJ/m3 700 to 1460
160
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
71
Strength to Weight: Axial, points 26 to 32
34
Strength to Weight: Bending, points 23 to 27
46
Thermal Diffusivity, mm2/s 12
39
Thermal Shock Resistance, points 21 to 27
12

Alloy Composition

Aluminum (Al), % 0
4.4 to 5.5
Carbon (C), % 0.3 to 0.37
0
Chromium (Cr), % 0.8 to 1.2
0
Copper (Cu), % 0
0 to 0.010
Iron (Fe), % 96.7 to 98.3
0 to 0.0050
Magnesium (Mg), % 0
93.5 to 95.5
Manganese (Mn), % 0.5 to 0.8
0.1 to 0.6
Molybdenum (Mo), % 0.15 to 0.3
0
Nickel (Ni), % 0
0 to 0.0020
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.6
0 to 0.1
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
0 to 0.3
Residuals, % 0
0 to 0.010