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AZ61A Magnesium vs. EN 1.6587 Steel

AZ61A magnesium belongs to the magnesium alloys classification, while EN 1.6587 steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (9, 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 1.6587 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
73
Tensile Strength: Ultimate (UTS), MPa 280
520 to 1420

Thermal Properties

Latent Heat of Fusion, J/g 350
250
Maximum Temperature: Mechanical, °C 120
440
Melting Completion (Liquidus), °C 600
1460
Melting Onset (Solidus), °C 530
1420
Specific Heat Capacity, J/kg-K 990
470
Thermal Conductivity, W/m-K 79
41
Thermal Expansion, µm/m-K 27
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 62
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 12
3.8
Density, g/cm3 1.7
7.9
Embodied Carbon, kg CO2/kg material 23
1.7
Embodied Energy, MJ/kg 160
22
Embodied Water, L/kg 980
58

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 69
24
Strength to Weight: Axial, points 46
18 to 50
Strength to Weight: Bending, points 56
18 to 36
Thermal Diffusivity, mm2/s 47
11
Thermal Shock Resistance, points 17
15 to 42

Alloy Composition


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Aluminum (Al), % 5.5 to 7.2
0 to 0.050
Carbon (C), % 0
0.15 to 0.21
Chromium (Cr), % 0
1.5 to 1.8
Copper (Cu), % 0 to 0.050
0 to 0.3
Iron (Fe), % 0 to 0.0050
94.4 to 96.4
Magnesium (Mg), % 90.3 to 93.9
0
Manganese (Mn), % 0.15 to 0.5
0.5 to 0.9
Molybdenum (Mo), % 0
0.25 to 0.35
Nickel (Ni), % 0 to 0.0050
1.4 to 1.7
Oxygen (O), % 0
0 to 0.0020
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.1
0 to 0.4
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0.4 to 1.5
0
Residuals, % 0 to 0.3
0