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AZ61A Magnesium vs. EN 1.3520 Steel

AZ61A magnesium belongs to the magnesium alloys classification, while EN 1.3520 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 AZ61A magnesium and the bottom bar is EN 1.3520 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
72
Tensile Strength: Ultimate (UTS), MPa 280
620 to 730

Thermal Properties

Latent Heat of Fusion, J/g 350
260
Maximum Temperature: Mechanical, °C 120
430
Melting Completion (Liquidus), °C 600
1440
Melting Onset (Solidus), °C 530
1400
Specific Heat Capacity, J/kg-K 990
480
Thermal Conductivity, W/m-K 79
43
Thermal Expansion, µm/m-K 27
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 62
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 12
2.6
Density, g/cm3 1.7
7.8
Embodied Carbon, kg CO2/kg material 23
1.5
Embodied Energy, MJ/kg 160
20
Embodied Water, L/kg 980
54

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 69
25
Strength to Weight: Axial, points 46
22 to 26
Strength to Weight: Bending, points 56
21 to 23
Thermal Diffusivity, mm2/s 47
12
Thermal Shock Resistance, points 17
18 to 22

Alloy Composition


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Aluminum (Al), % 5.5 to 7.2
0 to 0.050
Carbon (C), % 0
0.93 to 1.1
Chromium (Cr), % 0
1.4 to 1.7
Copper (Cu), % 0 to 0.050
0 to 0.3
Iron (Fe), % 0 to 0.0050
95.9 to 97.2
Magnesium (Mg), % 90.3 to 93.9
0
Manganese (Mn), % 0.15 to 0.5
1.0 to 1.2
Molybdenum (Mo), % 0
0 to 0.1
Nickel (Ni), % 0 to 0.0050
0
Oxygen (O), % 0
0 to 0.0015
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.1
0.45 to 0.75
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0.4 to 1.5
0
Residuals, % 0 to 0.3
0