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AM50A Magnesium vs. EN 1.4542 Stainless Steel

AM50A magnesium belongs to the magnesium alloys classification, while EN 1.4542 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 1.4542 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 11
5.7 to 20
Fatigue Strength, MPa 70
370 to 640
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
76
Shear Strength, MPa 120
550 to 860
Tensile Strength: Ultimate (UTS), MPa 210
880 to 1470
Tensile Strength: Yield (Proof), MPa 120
580 to 1300

Thermal Properties

Latent Heat of Fusion, J/g 350
280
Maximum Temperature: Mechanical, °C 120
860
Melting Completion (Liquidus), °C 620
1430
Melting Onset (Solidus), °C 570
1380
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 65
16
Thermal Expansion, µm/m-K 26
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 88
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 12
13
Density, g/cm3 1.7
7.8
Embodied Carbon, kg CO2/kg material 23
2.7
Embodied Energy, MJ/kg 160
39
Embodied Water, L/kg 990
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
62 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 150
880 to 4360
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 71
25
Strength to Weight: Axial, points 35
31 to 52
Strength to Weight: Bending, points 47
26 to 37
Thermal Diffusivity, mm2/s 39
4.3
Thermal Shock Resistance, points 13
29 to 49

Alloy Composition

Aluminum (Al), % 4.4 to 5.4
0
Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0
15 to 17
Copper (Cu), % 0 to 0.010
3.0 to 5.0
Iron (Fe), % 0 to 0.0040
69.6 to 79
Magnesium (Mg), % 93.7 to 95.3
0
Manganese (Mn), % 0.26 to 0.6
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.6
Nickel (Ni), % 0 to 0.0020
3.0 to 5.0
Niobium (Nb), % 0
0 to 0.45
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 0.7
Sulfur (S), % 0
0 to 0.015
Zinc (Zn), % 0 to 0.22
0