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EN-MC35110 Magnesium vs. SAE-AISI H22 Steel

EN-MC35110 magnesium belongs to the magnesium alloys classification, while SAE-AISI H22 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-MC35110 magnesium and the bottom bar is SAE-AISI H22 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
77
Tensile Strength: Ultimate (UTS), MPa 230
700 to 1920

Thermal Properties

Latent Heat of Fusion, J/g 330
250
Melting Completion (Liquidus), °C 600
1670
Melting Onset (Solidus), °C 520
1620
Specific Heat Capacity, J/kg-K 970
440
Thermal Conductivity, W/m-K 110
31
Thermal Expansion, µm/m-K 26
12

Otherwise Unclassified Properties

Base Metal Price, % relative 18
28
Density, g/cm3 1.9
8.7
Embodied Carbon, kg CO2/kg material 24
4.9
Embodied Energy, MJ/kg 170
73
Embodied Water, L/kg 940
72

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 63
22
Strength to Weight: Axial, points 34
22 to 61
Strength to Weight: Bending, points 44
20 to 39
Thermal Diffusivity, mm2/s 61
8.2
Thermal Shock Resistance, points 14
22 to 60

Alloy Composition


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Carbon (C), % 0
0.3 to 0.4
Chromium (Cr), % 0
1.8 to 3.8
Copper (Cu), % 0 to 0.030
0 to 0.25
Iron (Fe), % 0 to 0.010
82.2 to 87.4
Magnesium (Mg), % 92 to 95.4
0
Manganese (Mn), % 0 to 0.15
0.15 to 0.4
Nickel (Ni), % 0 to 0.0050
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.010
0.15 to 0.4
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 0
10 to 11.8
Unspecified Rare Earths, % 0.75 to 1.8
0
Vanadium (V), % 0
0.25 to 0.5
Zinc (Zn), % 3.5 to 5.0
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0