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AS41B Magnesium vs. EN 1.3519 Steel

AS41B magnesium belongs to the magnesium alloys classification, while EN 1.3519 steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, 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 1.3519 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
72
Tensile Strength: Ultimate (UTS), MPa 210
620 to 730

Thermal Properties

Latent Heat of Fusion, J/g 370
260
Maximum Temperature: Mechanical, °C 110
430
Melting Completion (Liquidus), °C 620
1440
Melting Onset (Solidus), °C 570
1400
Specific Heat Capacity, J/kg-K 1000
480
Thermal Conductivity, W/m-K 68
43
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 92
8.7

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
21
Embodied Water, L/kg 980
55

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 72
25
Strength to Weight: Axial, points 35
22 to 26
Strength to Weight: Bending, points 47
21 to 23
Thermal Diffusivity, mm2/s 41
12
Thermal Shock Resistance, points 13
18 to 22

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
0 to 0.050
Carbon (C), % 0
0.93 to 1.1
Chromium (Cr), % 0
1.4 to 1.7
Copper (Cu), % 0 to 0.020
0 to 0.3
Iron (Fe), % 0 to 0.0035
95.4 to 96.8
Magnesium (Mg), % 92.7 to 95.7
0
Manganese (Mn), % 0.35 to 0.7
1.4 to 1.7
Molybdenum (Mo), % 0
0 to 0.1
Nickel (Ni), % 0 to 0.0020
0
Oxygen (O), % 0
0 to 0.0015
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0.5 to 1.5
0.45 to 0.75
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.12
0