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AS41A Magnesium vs. EN 1.4571 Stainless Steel

AS41A magnesium belongs to the magnesium alloys classification, while EN 1.4571 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 1.4571 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 11
14 to 40
Fatigue Strength, MPa 100
200 to 330
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
78
Shear Strength, MPa 130
410 to 550
Tensile Strength: Ultimate (UTS), MPa 230
600 to 900
Tensile Strength: Yield (Proof), MPa 140
230 to 570

Thermal Properties

Latent Heat of Fusion, J/g 370
290
Maximum Temperature: Mechanical, °C 110
950
Melting Completion (Liquidus), °C 620
1440
Melting Onset (Solidus), °C 570
1400
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 68
15
Thermal Expansion, µm/m-K 26
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 92
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 12
19
Density, g/cm3 1.6
7.9
Embodied Carbon, kg CO2/kg material 23
3.9
Embodied Energy, MJ/kg 160
54
Embodied Water, L/kg 980
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
110 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 220
130 to 820
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 72
25
Strength to Weight: Axial, points 38
21 to 32
Strength to Weight: Bending, points 50
20 to 26
Thermal Diffusivity, mm2/s 41
4.0
Thermal Shock Resistance, points 14
13 to 20

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
16.5 to 18.5
Copper (Cu), % 0 to 0.060
0
Iron (Fe), % 0
61.7 to 71
Magnesium (Mg), % 92.8 to 95.8
0
Manganese (Mn), % 0.2 to 0.5
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 2.5
Nickel (Ni), % 0 to 0.030
10.5 to 13.5
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0.5 to 1.5
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
0 to 0.7
Zinc (Zn), % 0 to 0.12
0