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AZ31C Magnesium vs. EN 1.3555 Steel

AZ31C magnesium belongs to the magnesium alloys classification, while EN 1.3555 steel belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (10, 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 AZ31C magnesium and the bottom bar is EN 1.3555 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
75
Tensile Strength: Ultimate (UTS), MPa 260
770

Thermal Properties

Latent Heat of Fusion, J/g 350
260
Maximum Temperature: Mechanical, °C 110
540
Melting Completion (Liquidus), °C 600
1500
Melting Onset (Solidus), °C 550
1450
Specific Heat Capacity, J/kg-K 990
460
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 19
9.3
Electrical Conductivity: Equal Weight (Specific), % IACS 98
11

Otherwise Unclassified Properties

Base Metal Price, % relative 12
11
Density, g/cm3 1.7
7.9
Embodied Carbon, kg CO2/kg material 23
5.6
Embodied Energy, MJ/kg 160
81
Embodied Water, L/kg 970
90

Common Calculations

Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 70
24
Strength to Weight: Axial, points 42
27
Strength to Weight: Bending, points 53
23
Thermal Shock Resistance, points 16
22

Alloy Composition

Aluminum (Al), % 2.4 to 3.6
0
Carbon (C), % 0
0.1 to 0.15
Chromium (Cr), % 0
3.9 to 4.3
Copper (Cu), % 0 to 0.1
0 to 0.1
Iron (Fe), % 0
85.4 to 87.7
Magnesium (Mg), % 93.4 to 97
0
Manganese (Mn), % 0.15 to 1.0
0.15 to 0.35
Molybdenum (Mo), % 0
4.0 to 4.5
Nickel (Ni), % 0 to 0.030
3.2 to 3.6
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0 to 0.1
0.1 to 0.25
Sulfur (S), % 0
0 to 0.010
Tungsten (W), % 0
0 to 0.15
Vanadium (V), % 0
1.0 to 1.3
Zinc (Zn), % 0.5 to 1.5
0
Residuals, % 0 to 0.3
0