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AZ80A Magnesium vs. EN 1.3558 Steel

AZ80A magnesium belongs to the magnesium alloys classification, while EN 1.3558 steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, 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 AZ80A magnesium and the bottom bar is EN 1.3558 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
80
Tensile Strength: Ultimate (UTS), MPa 320 to 340
770

Thermal Properties

Latent Heat of Fusion, J/g 350
240
Maximum Temperature: Mechanical, °C 130
490
Melting Completion (Liquidus), °C 600
1810
Melting Onset (Solidus), °C 490
1760
Specific Heat Capacity, J/kg-K 990
410
Thermal Conductivity, W/m-K 77
20
Thermal Expansion, µm/m-K 26
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
13
Electrical Conductivity: Equal Weight (Specific), % IACS 59
12

Otherwise Unclassified Properties

Base Metal Price, % relative 12
45
Density, g/cm3 1.7
9.3
Embodied Carbon, kg CO2/kg material 23
8.4
Embodied Energy, MJ/kg 160
130
Embodied Water, L/kg 990
90

Common Calculations

Stiffness to Weight: Axial, points 15
12
Stiffness to Weight: Bending, points 69
21
Strength to Weight: Axial, points 51 to 55
23
Strength to Weight: Bending, points 60 to 63
20
Thermal Diffusivity, mm2/s 45
5.3
Thermal Shock Resistance, points 19 to 20
22

Alloy Composition

Aluminum (Al), % 7.8 to 9.2
0
Carbon (C), % 0
0.7 to 0.8
Chromium (Cr), % 0
3.9 to 4.3
Copper (Cu), % 0 to 0.050
0 to 0.3
Iron (Fe), % 0 to 0.0050
73.7 to 77.6
Magnesium (Mg), % 89 to 91.9
0
Manganese (Mn), % 0.12 to 0.5
0 to 0.4
Molybdenum (Mo), % 0
0 to 0.6
Nickel (Ni), % 0 to 0.0050
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.1
0 to 0.4
Sulfur (S), % 0
0 to 0.015
Tungsten (W), % 0
17.5 to 19
Vanadium (V), % 0
1.0 to 1.3
Zinc (Zn), % 0.2 to 0.8
0
Residuals, % 0 to 0.3
0