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EN-MC65220 Magnesium vs. EN 1.7386 Steel

EN-MC65220 magnesium belongs to the magnesium alloys classification, while EN 1.7386 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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-MC65220 magnesium and the bottom bar is EN 1.7386 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
170 to 200
Elastic (Young's, Tensile) Modulus, GPa 44
190
Elongation at Break, % 2.2
18 to 21
Fatigue Strength, MPa 110
170 to 290
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
75
Shear Strength, MPa 150
340 to 410
Tensile Strength: Ultimate (UTS), MPa 270
550 to 670
Tensile Strength: Yield (Proof), MPa 200
240 to 440

Thermal Properties

Latent Heat of Fusion, J/g 340
270
Maximum Temperature: Mechanical, °C 160
600
Melting Completion (Liquidus), °C 610
1450
Melting Onset (Solidus), °C 550
1410
Specific Heat Capacity, J/kg-K 980
480
Thermal Conductivity, W/m-K 110
26
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 120
10

Otherwise Unclassified Properties

Base Metal Price, % relative 80
6.5
Density, g/cm3 1.9
7.8
Embodied Carbon, kg CO2/kg material 27
2.0
Embodied Energy, MJ/kg 210
28

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
92 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 450
150 to 490
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 62
25
Strength to Weight: Axial, points 40
20 to 24
Strength to Weight: Bending, points 49
19 to 22
Thermal Diffusivity, mm2/s 61
6.9
Thermal Shock Resistance, points 17
15 to 18

Alloy Composition


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Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0
0.080 to 0.15
Chromium (Cr), % 0
8.0 to 10
Copper (Cu), % 0.050 to 0.1
0 to 0.3
Iron (Fe), % 0 to 0.010
86.8 to 90.5
Magnesium (Mg), % 93.8 to 96.8
0
Manganese (Mn), % 0 to 0.15
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0 to 0.0050
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.010
0.25 to 1.0
Silver (Ag), % 1.3 to 1.7
0
Sulfur (S), % 0
0 to 0.010
Unspecified Rare Earths, % 1.5 to 3.0
0
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0