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EN-MC95310 Magnesium vs. SAE-AISI H24 Steel

EN-MC95310 magnesium belongs to the magnesium alloys classification, while SAE-AISI H24 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-MC95310 magnesium and the bottom bar is SAE-AISI H24 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 17
78
Tensile Strength: Ultimate (UTS), MPa 280
720 to 1990

Thermal Properties

Latent Heat of Fusion, J/g 330
240
Melting Completion (Liquidus), °C 650
1750
Melting Onset (Solidus), °C 540
1700
Specific Heat Capacity, J/kg-K 960
420
Thermal Conductivity, W/m-K 51
27
Thermal Expansion, µm/m-K 25
12

Otherwise Unclassified Properties

Base Metal Price, % relative 34
37
Density, g/cm3 1.9
9.1
Embodied Carbon, kg CO2/kg material 29
6.1
Embodied Energy, MJ/kg 260
93
Embodied Water, L/kg 900
78

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 61
22
Strength to Weight: Axial, points 40
22 to 61
Strength to Weight: Bending, points 49
20 to 39
Thermal Diffusivity, mm2/s 28
6.9
Thermal Shock Resistance, points 18
22 to 61

Alloy Composition


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Carbon (C), % 0
0.42 to 0.53
Chromium (Cr), % 0
2.5 to 3.5
Copper (Cu), % 0 to 0.030
0 to 0.25
Iron (Fe), % 0 to 0.010
78 to 82.4
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 88.9 to 93.4
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
14 to 16
Unspecified Rare Earths, % 1.5 to 4.0
0
Vanadium (V), % 0
0.4 to 0.6
Yttrium (Y), % 4.8 to 5.5
0
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0