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EN-MC32110 Magnesium vs. SAE-AISI H25 Steel

EN-MC32110 magnesium belongs to the magnesium alloys classification, while SAE-AISI H25 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 H25 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
79
Tensile Strength: Ultimate (UTS), MPa 220
710 to 1620

Thermal Properties

Latent Heat of Fusion, J/g 330
250
Melting Completion (Liquidus), °C 600
1750
Melting Onset (Solidus), °C 500
1700
Specific Heat Capacity, J/kg-K 950
420
Thermal Conductivity, W/m-K 120
26
Thermal Expansion, µm/m-K 26
12

Otherwise Unclassified Properties

Base Metal Price, % relative 13
38
Density, g/cm3 2.1
9.1
Embodied Carbon, kg CO2/kg material 22
6.2
Embodied Energy, MJ/kg 150
93
Embodied Water, L/kg 920
83

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 58
22
Strength to Weight: Axial, points 29
22 to 50
Strength to Weight: Bending, points 38
20 to 34
Thermal Diffusivity, mm2/s 58
6.7
Thermal Shock Resistance, points 12
22 to 49

Alloy Composition


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Aluminum (Al), % 0 to 0.2
0
Carbon (C), % 0
0.22 to 0.32
Chromium (Cr), % 0
3.8 to 4.5
Copper (Cu), % 2.4 to 3.0
0 to 0.25
Iron (Fe), % 0 to 0.050
77.2 to 81.3
Magnesium (Mg), % 89.3 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0.15 to 0.4
Nickel (Ni), % 0 to 0.010
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.2
0.15 to 0.4
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 0
14 to 16
Vanadium (V), % 0
0.4 to 0.6
Zinc (Zn), % 5.5 to 6.5
0
Residuals, % 0 to 0.010
0