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AM50A Magnesium vs. EN 1.4662 Stainless Steel

AM50A magnesium belongs to the magnesium alloys classification, while EN 1.4662 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 AM50A magnesium and the bottom bar is EN 1.4662 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 11
28
Fatigue Strength, MPa 70
430 to 450
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 17
79
Shear Strength, MPa 120
520 to 540
Tensile Strength: Ultimate (UTS), MPa 210
810 to 830
Tensile Strength: Yield (Proof), MPa 120
580 to 620

Thermal Properties

Latent Heat of Fusion, J/g 350
290
Maximum Temperature: Mechanical, °C 120
1090
Melting Completion (Liquidus), °C 620
1430
Melting Onset (Solidus), °C 570
1380
Specific Heat Capacity, J/kg-K 1000
480
Thermal Conductivity, W/m-K 65
15
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 88
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 12
16
Density, g/cm3 1.7
7.7
Embodied Carbon, kg CO2/kg material 23
3.2
Embodied Energy, MJ/kg 160
45
Embodied Water, L/kg 990
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
210
Resilience: Unit (Modulus of Resilience), kJ/m3 150
840 to 940
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 71
25
Strength to Weight: Axial, points 35
29 to 30
Strength to Weight: Bending, points 47
25
Thermal Diffusivity, mm2/s 39
3.9
Thermal Shock Resistance, points 13
22

Alloy Composition

Aluminum (Al), % 4.4 to 5.4
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
23 to 25
Copper (Cu), % 0 to 0.010
0.1 to 0.8
Iron (Fe), % 0 to 0.0040
62.6 to 70.2
Magnesium (Mg), % 93.7 to 95.3
0
Manganese (Mn), % 0.26 to 0.6
2.5 to 4.0
Molybdenum (Mo), % 0
1.0 to 2.0
Nickel (Ni), % 0 to 0.0020
3.0 to 4.5
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.1
0 to 0.7
Sulfur (S), % 0
0 to 0.0050
Zinc (Zn), % 0 to 0.22
0