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EN-MC32110 Magnesium vs. SAE-AISI D5 Steel

EN-MC32110 magnesium belongs to the magnesium alloys classification, while SAE-AISI D5 steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (7, 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-MC32110 magnesium and the bottom bar is SAE-AISI D5 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 49
190
Elongation at Break, % 2.2
5.4 to 14
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 19
75
Shear Strength, MPa 120
470 to 1180
Tensile Strength: Ultimate (UTS), MPa 220
770 to 2030

Thermal Properties

Latent Heat of Fusion, J/g 330
270
Melting Completion (Liquidus), °C 600
1430
Melting Onset (Solidus), °C 500
1390
Specific Heat Capacity, J/kg-K 950
480
Thermal Conductivity, W/m-K 120
27
Thermal Expansion, µm/m-K 26
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
4.2
Electrical Conductivity: Equal Weight (Specific), % IACS 140
4.9

Otherwise Unclassified Properties

Base Metal Price, % relative 13
13
Density, g/cm3 2.1
7.7
Embodied Carbon, kg CO2/kg material 22
3.5
Embodied Energy, MJ/kg 150
51
Embodied Water, L/kg 920
120

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 58
25
Strength to Weight: Axial, points 29
28 to 73
Strength to Weight: Bending, points 38
24 to 46
Thermal Diffusivity, mm2/s 58
7.4
Thermal Shock Resistance, points 12
26 to 67

Alloy Composition


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Aluminum (Al), % 0 to 0.2
0
Carbon (C), % 0
1.4 to 1.6
Chromium (Cr), % 0
11 to 13
Cobalt (Co), % 0
2.5 to 3.5
Copper (Cu), % 2.4 to 3.0
0 to 0.25
Iron (Fe), % 0 to 0.050
77.9 to 84.4
Magnesium (Mg), % 89.3 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0 to 0.6
Molybdenum (Mo), % 0
0.7 to 1.2
Nickel (Ni), % 0 to 0.010
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.2
0 to 0.6
Sulfur (S), % 0
0 to 0.030
Vanadium (V), % 0
0 to 1.0
Zinc (Zn), % 5.5 to 6.5
0
Residuals, % 0 to 0.010
0