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AS41A Magnesium vs. EN 1.4592 Stainless Steel

AS41A magnesium belongs to the magnesium alloys classification, while EN 1.4592 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 AS41A magnesium and the bottom bar is EN 1.4592 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
210
Elongation at Break, % 11
23
Fatigue Strength, MPa 100
340
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 17
82
Shear Strength, MPa 130
400
Tensile Strength: Ultimate (UTS), MPa 230
630
Tensile Strength: Yield (Proof), MPa 140
500

Thermal Properties

Latent Heat of Fusion, J/g 370
310
Maximum Temperature: Mechanical, °C 110
1100
Melting Completion (Liquidus), °C 620
1460
Melting Onset (Solidus), °C 570
1410
Specific Heat Capacity, J/kg-K 1000
480
Thermal Conductivity, W/m-K 68
17
Thermal Expansion, µm/m-K 26
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 92
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 12
18
Density, g/cm3 1.6
7.7
Embodied Carbon, kg CO2/kg material 23
3.8
Embodied Energy, MJ/kg 160
52
Embodied Water, L/kg 980
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
130
Resilience: Unit (Modulus of Resilience), kJ/m3 220
610
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 72
26
Strength to Weight: Axial, points 38
23
Strength to Weight: Bending, points 50
21
Thermal Diffusivity, mm2/s 41
4.6
Thermal Shock Resistance, points 14
20

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
0
Carbon (C), % 0
0 to 0.025
Chromium (Cr), % 0
28 to 30
Copper (Cu), % 0 to 0.060
0
Iron (Fe), % 0
62.6 to 68.4
Magnesium (Mg), % 92.8 to 95.8
0
Manganese (Mn), % 0.2 to 0.5
0 to 1.0
Molybdenum (Mo), % 0
3.5 to 4.5
Nickel (Ni), % 0 to 0.030
0
Nitrogen (N), % 0
0 to 0.045
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0.5 to 1.5
0 to 1.0
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0
0.15 to 0.8
Zinc (Zn), % 0 to 0.12
0