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EN-MC21210 Magnesium vs. SAE-AISI T6 Steel

EN-MC21210 magnesium belongs to the magnesium alloys classification, while SAE-AISI T6 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, 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 SAE-AISI T6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
81
Tensile Strength: Ultimate (UTS), MPa 190
880 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 350
250
Melting Completion (Liquidus), °C 600
1830
Melting Onset (Solidus), °C 570
1770
Specific Heat Capacity, J/kg-K 1000
400
Thermal Conductivity, W/m-K 120
18
Thermal Expansion, µm/m-K 27
12

Otherwise Unclassified Properties

Base Metal Price, % relative 12
70
Density, g/cm3 1.6
9.5
Embodied Carbon, kg CO2/kg material 24
11
Embodied Energy, MJ/kg 160
170
Embodied Water, L/kg 980
160

Common Calculations

Stiffness to Weight: Axial, points 15
12
Stiffness to Weight: Bending, points 72
21
Strength to Weight: Axial, points 32
26 to 63
Strength to Weight: Bending, points 44
21 to 39
Thermal Diffusivity, mm2/s 76
4.7
Thermal Shock Resistance, points 11
26 to 64

Alloy Composition


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Aluminum (Al), % 1.6 to 2.6
0
Carbon (C), % 0
0.75 to 0.85
Chromium (Cr), % 0
4.0 to 4.8
Cobalt (Co), % 0
11 to 13
Copper (Cu), % 0 to 0.010
0 to 0.25
Iron (Fe), % 0 to 0.0050
55.9 to 63.5
Magnesium (Mg), % 96.3 to 98.3
0
Manganese (Mn), % 0.1 to 0.7
0.2 to 0.4
Molybdenum (Mo), % 0
0.4 to 1.0
Nickel (Ni), % 0 to 0.0020
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.1
0.2 to 0.4
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 0
18.5 to 21
Vanadium (V), % 0
1.5 to 2.1
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.010
0