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AS41B Magnesium vs. EN 1.4807 Stainless Steel

AS41B magnesium belongs to the magnesium alloys classification, while EN 1.4807 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 1.4807 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 6.0
4.5
Fatigue Strength, MPa 97
120
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
75
Tensile Strength: Ultimate (UTS), MPa 210
480
Tensile Strength: Yield (Proof), MPa 140
250

Thermal Properties

Latent Heat of Fusion, J/g 370
320
Maximum Temperature: Mechanical, °C 110
1000
Melting Completion (Liquidus), °C 620
1390
Melting Onset (Solidus), °C 570
1350
Specific Heat Capacity, J/kg-K 1000
480
Thermal Conductivity, W/m-K 68
12
Thermal Expansion, µm/m-K 26
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 92
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 12
39
Density, g/cm3 1.7
8.0
Embodied Carbon, kg CO2/kg material 23
6.8
Embodied Energy, MJ/kg 160
97
Embodied Water, L/kg 980
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
18
Resilience: Unit (Modulus of Resilience), kJ/m3 220
160
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 72
24
Strength to Weight: Axial, points 35
17
Strength to Weight: Bending, points 47
17
Thermal Diffusivity, mm2/s 41
3.2
Thermal Shock Resistance, points 13
12

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
0
Carbon (C), % 0
0.3 to 0.5
Chromium (Cr), % 0
17 to 20
Copper (Cu), % 0 to 0.020
0
Iron (Fe), % 0 to 0.0035
36.6 to 46.7
Magnesium (Mg), % 92.7 to 95.7
0
Manganese (Mn), % 0.35 to 0.7
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.0020
34 to 36
Niobium (Nb), % 0
1.0 to 1.8
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.5 to 1.5
1.0 to 2.5
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.12
0