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EN-MC21210 Magnesium vs. EN 1.7225 Steel

EN-MC21210 magnesium belongs to the magnesium alloys classification, while EN 1.7225 steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (6, 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-MC21210 magnesium and the bottom bar is EN 1.7225 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 48
160 to 300
Elastic (Young's, Tensile) Modulus, GPa 44
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
73
Tensile Strength: Ultimate (UTS), MPa 190
540 to 1850

Thermal Properties

Latent Heat of Fusion, J/g 350
250
Maximum Temperature: Mechanical, °C 100
420
Melting Completion (Liquidus), °C 600
1460
Melting Onset (Solidus), °C 570
1420
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 120
46
Thermal Expansion, µm/m-K 27
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 12
2.5
Density, g/cm3 1.6
7.8
Embodied Carbon, kg CO2/kg material 24
1.5
Embodied Energy, MJ/kg 160
20
Embodied Water, L/kg 980
51

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 72
24
Strength to Weight: Axial, points 32
19 to 65
Strength to Weight: Bending, points 44
19 to 43
Thermal Diffusivity, mm2/s 76
12
Thermal Shock Resistance, points 11
16 to 54

Alloy Composition


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Aluminum (Al), % 1.6 to 2.6
0
Carbon (C), % 0
0.38 to 0.45
Chromium (Cr), % 0
0.9 to 1.2
Copper (Cu), % 0 to 0.010
0 to 0.25
Iron (Fe), % 0 to 0.0050
96.6 to 98
Magnesium (Mg), % 96.3 to 98.3
0
Manganese (Mn), % 0.1 to 0.7
0.6 to 0.9
Molybdenum (Mo), % 0
0.15 to 0.3
Nickel (Ni), % 0 to 0.0020
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.1
0 to 0.4
Sulfur (S), % 0
0 to 0.035
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.010
0