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EN-MC21320 Magnesium vs. SAE-AISI F1 Steel

EN-MC21320 magnesium belongs to the magnesium alloys classification, while SAE-AISI F1 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, 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-MC21320 magnesium and the bottom bar is SAE-AISI F1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
72
Tensile Strength: Ultimate (UTS), MPa 230
620 to 2320

Thermal Properties

Latent Heat of Fusion, J/g 370
250
Melting Completion (Liquidus), °C 600
1480
Melting Onset (Solidus), °C 530
1430
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 66
45
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 91
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 12
5.0
Density, g/cm3 1.6
7.9
Embodied Carbon, kg CO2/kg material 23
1.7
Embodied Energy, MJ/kg 160
24
Embodied Water, L/kg 980
46

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 72
24
Strength to Weight: Axial, points 38
22 to 82
Strength to Weight: Bending, points 50
20 to 49
Thermal Diffusivity, mm2/s 40
12
Thermal Shock Resistance, points 13
19 to 70

Alloy Composition


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Aluminum (Al), % 3.5 to 5.0
0
Carbon (C), % 0
1.0 to 1.3
Copper (Cu), % 0 to 0.010
0
Iron (Fe), % 0 to 0.0050
95.9 to 98
Magnesium (Mg), % 92.5 to 95.9
0
Manganese (Mn), % 0.1 to 0.7
0 to 0.5
Nickel (Ni), % 0 to 0.0020
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0.5 to 1.5
0.1 to 0.5
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 0
1.0 to 1.8
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.010
0