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EN-MC32110 Magnesium vs. SAE-AISI H43 Steel

EN-MC32110 magnesium belongs to the magnesium alloys classification, while SAE-AISI H43 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-MC32110 magnesium and the bottom bar is SAE-AISI H43 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 49
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 19
77
Tensile Strength: Ultimate (UTS), MPa 220
710 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 330
270
Melting Completion (Liquidus), °C 600
1530
Melting Onset (Solidus), °C 500
1480
Specific Heat Capacity, J/kg-K 950
460
Thermal Conductivity, W/m-K 120
30
Thermal Expansion, µm/m-K 26
12

Otherwise Unclassified Properties

Base Metal Price, % relative 13
14
Density, g/cm3 2.1
7.9
Embodied Carbon, kg CO2/kg material 22
8.2
Embodied Energy, MJ/kg 150
120
Embodied Water, L/kg 920
100

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 58
24
Strength to Weight: Axial, points 29
25 to 75
Strength to Weight: Bending, points 38
22 to 46
Thermal Diffusivity, mm2/s 58
8.3
Thermal Shock Resistance, points 12
21 to 62

Alloy Composition


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Aluminum (Al), % 0 to 0.2
0
Carbon (C), % 0
0.5 to 0.65
Chromium (Cr), % 0
3.8 to 4.5
Copper (Cu), % 2.4 to 3.0
0
Iron (Fe), % 0 to 0.050
83.2 to 85.9
Magnesium (Mg), % 89.3 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0.15 to 0.4
Molybdenum (Mo), % 0
7.8 to 8.5
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.2
0.2 to 0.45
Sulfur (S), % 0
0 to 0.030
Vanadium (V), % 0
1.8 to 2.2
Zinc (Zn), % 5.5 to 6.5
0
Residuals, % 0 to 0.010
0