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EN-MC21210 Magnesium vs. SAE-AISI H11 Steel

EN-MC21210 magnesium belongs to the magnesium alloys classification, while SAE-AISI H11 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-MC21210 magnesium and the bottom bar is SAE-AISI H11 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
74
Tensile Strength: Ultimate (UTS), MPa 190
690 to 1840

Thermal Properties

Latent Heat of Fusion, J/g 350
270
Melting Completion (Liquidus), °C 600
1460
Melting Onset (Solidus), °C 570
1410
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 120
42
Thermal Expansion, µm/m-K 27
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 130
9.5

Otherwise Unclassified Properties

Base Metal Price, % relative 12
5.5
Density, g/cm3 1.6
7.8
Embodied Carbon, kg CO2/kg material 24
3.0
Embodied Energy, MJ/kg 160
43
Embodied Water, L/kg 980
75

Common Calculations

Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 72
25
Strength to Weight: Axial, points 32
25 to 66
Strength to Weight: Bending, points 44
22 to 43
Thermal Diffusivity, mm2/s 76
11
Thermal Shock Resistance, points 11
22 to 58

Alloy Composition


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Aluminum (Al), % 1.6 to 2.6
0
Carbon (C), % 0
0.33 to 0.43
Chromium (Cr), % 0
4.8 to 5.5
Copper (Cu), % 0 to 0.010
0 to 0.25
Iron (Fe), % 0 to 0.0050
89.6 to 92.5
Magnesium (Mg), % 96.3 to 98.3
0
Manganese (Mn), % 0.1 to 0.7
0.2 to 0.5
Molybdenum (Mo), % 0
1.1 to 1.6
Nickel (Ni), % 0 to 0.0020
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.1
0.8 to 1.2
Sulfur (S), % 0
0 to 0.030
Vanadium (V), % 0
0.3 to 0.6
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.010
0