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AM50A Magnesium vs. EN 1.4823 Stainless Steel

AM50A magnesium belongs to the magnesium alloys classification, while EN 1.4823 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 AM50A magnesium and the bottom bar is EN 1.4823 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 11
3.4
Fatigue Strength, MPa 70
130
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 17
79
Tensile Strength: Ultimate (UTS), MPa 210
620
Tensile Strength: Yield (Proof), MPa 120
290

Thermal Properties

Latent Heat of Fusion, J/g 350
320
Maximum Temperature: Mechanical, °C 120
1100
Melting Completion (Liquidus), °C 620
1400
Melting Onset (Solidus), °C 570
1360
Specific Heat Capacity, J/kg-K 1000
490
Thermal Conductivity, W/m-K 65
17
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 88
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 12
16
Density, g/cm3 1.7
7.6
Embodied Carbon, kg CO2/kg material 23
3.0
Embodied Energy, MJ/kg 160
43
Embodied Water, L/kg 990
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
17
Resilience: Unit (Modulus of Resilience), kJ/m3 150
200
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 71
26
Strength to Weight: Axial, points 35
23
Strength to Weight: Bending, points 47
21
Thermal Diffusivity, mm2/s 39
4.5
Thermal Shock Resistance, points 13
17

Alloy Composition

Aluminum (Al), % 4.4 to 5.4
0
Carbon (C), % 0
0.3 to 0.5
Chromium (Cr), % 0
25 to 28
Copper (Cu), % 0 to 0.010
0
Iron (Fe), % 0 to 0.0040
60.9 to 70.7
Magnesium (Mg), % 93.7 to 95.3
0
Manganese (Mn), % 0.26 to 0.6
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.0020
3.0 to 6.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.1
1.0 to 2.5
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.22
0