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EN 1.7231 Steel vs. EN-MC65210 Magnesium

EN 1.7231 steel belongs to the iron alloys classification, while EN-MC65210 magnesium belongs to the magnesium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, 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 1.7231 steel and the bottom bar is EN-MC65210 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240 to 280
80
Elastic (Young's, Tensile) Modulus, GPa 190
44
Elongation at Break, % 11 to 12
2.8
Fatigue Strength, MPa 360 to 500
110
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
17
Tensile Strength: Ultimate (UTS), MPa 790 to 930
270
Tensile Strength: Yield (Proof), MPa 570 to 800
200

Thermal Properties

Latent Heat of Fusion, J/g 250
340
Maximum Temperature: Mechanical, °C 420
170
Melting Completion (Liquidus), °C 1460
610
Melting Onset (Solidus), °C 1420
540
Specific Heat Capacity, J/kg-K 470
970
Thermal Conductivity, W/m-K 46
110
Thermal Expansion, µm/m-K 13
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
25
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
110

Otherwise Unclassified Properties

Density, g/cm3 7.8
2.0
Embodied Carbon, kg CO2/kg material 1.5
27
Embodied Energy, MJ/kg 20
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 100
6.9
Resilience: Unit (Modulus of Resilience), kJ/m3 870 to 1700
450
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 24
59
Strength to Weight: Axial, points 28 to 33
38
Strength to Weight: Bending, points 24 to 27
47
Thermal Diffusivity, mm2/s 12
58
Thermal Shock Resistance, points 23 to 27
17

Alloy Composition

Carbon (C), % 0.38 to 0.45
0
Chromium (Cr), % 0.8 to 1.2
0
Copper (Cu), % 0
0 to 0.030
Iron (Fe), % 96.4 to 98.1
0 to 0.010
Magnesium (Mg), % 0
92.6 to 95.6
Manganese (Mn), % 0.6 to 1.0
0 to 0.15
Molybdenum (Mo), % 0.15 to 0.3
0
Nickel (Ni), % 0
0 to 0.0050
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.6
0 to 0.010
Silver (Ag), % 0
2.0 to 3.0
Sulfur (S), % 0 to 0.030
0
Unspecified Rare Earths, % 0
2.0 to 3.0
Zinc (Zn), % 0
0 to 0.2
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.010