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AS41B Magnesium vs. EN 1.4911 Stainless Steel

AS41B magnesium belongs to the magnesium alloys classification, while EN 1.4911 stainless 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 1.4911 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 6.0
11
Fatigue Strength, MPa 97
530
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
76
Shear Strength, MPa 120
640
Tensile Strength: Ultimate (UTS), MPa 210
1070
Tensile Strength: Yield (Proof), MPa 140
970

Thermal Properties

Latent Heat of Fusion, J/g 370
270
Maximum Temperature: Mechanical, °C 110
700
Melting Completion (Liquidus), °C 620
1450
Melting Onset (Solidus), °C 570
1410
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 68
20
Thermal Expansion, µm/m-K 26
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 92
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 12
20
Density, g/cm3 1.7
7.9
Embodied Carbon, kg CO2/kg material 23
3.4
Embodied Energy, MJ/kg 160
49
Embodied Water, L/kg 980
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
120
Resilience: Unit (Modulus of Resilience), kJ/m3 220
2410
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 72
25
Strength to Weight: Axial, points 35
38
Strength to Weight: Bending, points 47
30
Thermal Diffusivity, mm2/s 41
5.4
Thermal Shock Resistance, points 13
37

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
0
Boron (B), % 0
0.0050 to 0.015
Carbon (C), % 0
0.050 to 0.12
Chromium (Cr), % 0
9.8 to 11.2
Cobalt (Co), % 0
5.0 to 7.0
Copper (Cu), % 0 to 0.020
0
Iron (Fe), % 0 to 0.0035
75.7 to 83.8
Magnesium (Mg), % 92.7 to 95.7
0
Manganese (Mn), % 0.35 to 0.7
0.3 to 1.3
Molybdenum (Mo), % 0
0.5 to 1.0
Nickel (Ni), % 0 to 0.0020
0.2 to 1.2
Niobium (Nb), % 0
0.2 to 0.5
Nitrogen (N), % 0
0 to 0.035
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0.5 to 1.5
0.1 to 0.8
Sulfur (S), % 0
0 to 0.015
Tungsten (W), % 0
0 to 0.7
Vanadium (V), % 0
0.1 to 0.4
Zinc (Zn), % 0 to 0.12
0