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AS41A Magnesium vs. EN 1.3551 Steel

AS41A magnesium belongs to the magnesium alloys classification, while EN 1.3551 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 AS41A magnesium and the bottom bar is EN 1.3551 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
75
Tensile Strength: Ultimate (UTS), MPa 230
720

Thermal Properties

Latent Heat of Fusion, J/g 370
260
Maximum Temperature: Mechanical, °C 110
530
Melting Completion (Liquidus), °C 620
1490
Melting Onset (Solidus), °C 570
1450
Specific Heat Capacity, J/kg-K 1000
460
Thermal Conductivity, W/m-K 68
36
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
8.6
Electrical Conductivity: Equal Weight (Specific), % IACS 92
9.9

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.0
Density, g/cm3 1.6
7.9
Embodied Carbon, kg CO2/kg material 23
4.9
Embodied Energy, MJ/kg 160
71
Embodied Water, L/kg 980
82

Common Calculations

Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 72
24
Strength to Weight: Axial, points 38
26
Strength to Weight: Bending, points 50
23
Thermal Diffusivity, mm2/s 41
9.8
Thermal Shock Resistance, points 14
21

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
0
Carbon (C), % 0
0.77 to 0.85
Chromium (Cr), % 0
3.9 to 4.3
Copper (Cu), % 0 to 0.060
0 to 0.3
Iron (Fe), % 0
88.8 to 91.1
Magnesium (Mg), % 92.8 to 95.8
0
Manganese (Mn), % 0.2 to 0.5
0.15 to 0.35
Molybdenum (Mo), % 0
4.0 to 4.5
Nickel (Ni), % 0 to 0.030
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0.5 to 1.5
0 to 0.4
Sulfur (S), % 0
0 to 0.015
Tungsten (W), % 0
0 to 0.25
Vanadium (V), % 0
0.9 to 1.1
Zinc (Zn), % 0 to 0.12
0