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EN-MC65210 Magnesium vs. SAE-AISI H19 Steel

EN-MC65210 magnesium belongs to the magnesium alloys classification, while SAE-AISI H19 steel belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (13, 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-MC65210 magnesium and the bottom bar is SAE-AISI H19 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
75
Tensile Strength: Ultimate (UTS), MPa 270
720 to 1990

Thermal Properties

Latent Heat of Fusion, J/g 340
260
Melting Completion (Liquidus), °C 610
1540
Melting Onset (Solidus), °C 540
1490
Specific Heat Capacity, J/kg-K 970
460
Thermal Conductivity, W/m-K 110
29
Thermal Expansion, µm/m-K 26
12

Otherwise Unclassified Properties

Density, g/cm3 2.0
8.2
Embodied Carbon, kg CO2/kg material 27
7.5
Embodied Energy, MJ/kg 220
110

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 59
24
Strength to Weight: Axial, points 38
24 to 68
Strength to Weight: Bending, points 47
22 to 43
Thermal Diffusivity, mm2/s 58
7.9
Thermal Shock Resistance, points 17
21 to 59

Alloy Composition

Carbon (C), % 0
0.32 to 0.45
Chromium (Cr), % 0
4.0 to 4.8
Cobalt (Co), % 0
4.0 to 4.5
Copper (Cu), % 0 to 0.030
0 to 0.25
Iron (Fe), % 0 to 0.010
81.4 to 85.5
Magnesium (Mg), % 92.6 to 95.6
0
Manganese (Mn), % 0 to 0.15
0.2 to 0.5
Molybdenum (Mo), % 0
0.3 to 0.55
Nickel (Ni), % 0 to 0.0050
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.010
0.2 to 0.5
Silver (Ag), % 2.0 to 3.0
0
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 0
3.8 to 4.5
Unspecified Rare Earths, % 2.0 to 3.0
0
Vanadium (V), % 0
1.8 to 2.2
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0