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AS41B Magnesium vs. EN 1.0434 Steel

AS41B magnesium belongs to the magnesium alloys classification, while EN 1.0434 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 1.0434 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 6.0
12 to 28
Fatigue Strength, MPa 97
190 to 300
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
73
Shear Strength, MPa 120
280 to 330
Tensile Strength: Ultimate (UTS), MPa 210
390 to 540
Tensile Strength: Yield (Proof), MPa 140
250 to 450

Thermal Properties

Latent Heat of Fusion, J/g 370
250
Maximum Temperature: Mechanical, °C 110
400
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
52
Thermal Expansion, µm/m-K 26
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 92
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 12
1.8
Density, g/cm3 1.7
7.9
Embodied Carbon, kg CO2/kg material 23
1.4
Embodied Energy, MJ/kg 160
18
Embodied Water, L/kg 980
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
39 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 220
170 to 540
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 72
24
Strength to Weight: Axial, points 35
14 to 19
Strength to Weight: Bending, points 47
15 to 19
Thermal Diffusivity, mm2/s 41
14
Thermal Shock Resistance, points 13
12 to 17

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
0.020 to 0.060
Carbon (C), % 0
0.15 to 0.19
Copper (Cu), % 0 to 0.020
0
Iron (Fe), % 0 to 0.0035
98.8 to 99.18
Magnesium (Mg), % 92.7 to 95.7
0
Manganese (Mn), % 0.35 to 0.7
0.65 to 0.85
Nickel (Ni), % 0 to 0.0020
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0.5 to 1.5
0 to 0.1
Sulfur (S), % 0
0 to 0.025
Zinc (Zn), % 0 to 0.12
0