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AS41B Magnesium vs. EN 1.8522 Steel

AS41B magnesium belongs to the magnesium alloys classification, while EN 1.8522 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 AS41B magnesium and the bottom bar is EN 1.8522 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 18
74
Tensile Strength: Ultimate (UTS), MPa 210
730 to 1250

Thermal Properties

Latent Heat of Fusion, J/g 370
260
Maximum Temperature: Mechanical, °C 110
470
Melting Completion (Liquidus), °C 620
1460
Melting Onset (Solidus), °C 570
1420
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 68
39
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 92
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 12
4.2
Density, g/cm3 1.7
7.8
Embodied Carbon, kg CO2/kg material 23
2.2
Embodied Energy, MJ/kg 160
31
Embodied Water, L/kg 980
63

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 72
24
Strength to Weight: Axial, points 35
26 to 44
Strength to Weight: Bending, points 47
23 to 33
Thermal Diffusivity, mm2/s 41
11
Thermal Shock Resistance, points 13
21 to 36

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
0
Carbon (C), % 0
0.29 to 0.36
Chromium (Cr), % 0
2.8 to 3.3
Copper (Cu), % 0 to 0.020
0 to 0.1
Iron (Fe), % 0 to 0.0035
93.7 to 96
Magnesium (Mg), % 92.7 to 95.7
0
Manganese (Mn), % 0.35 to 0.7
0.4 to 0.7
Molybdenum (Mo), % 0
0.7 to 1.2
Nickel (Ni), % 0 to 0.0020
0 to 0.3
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0.5 to 1.5
0 to 0.4
Sulfur (S), % 0
0 to 0.035
Vanadium (V), % 0
0.15 to 0.25
Zinc (Zn), % 0 to 0.12
0