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AM50A Magnesium vs. S32615 Stainless Steel

AM50A magnesium belongs to the magnesium alloys classification, while S32615 stainless steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (7, 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 S32615 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 58
170
Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 11
28
Fatigue Strength, MPa 70
180
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
75
Shear Strength, MPa 120
400
Tensile Strength: Ultimate (UTS), MPa 210
620
Tensile Strength: Yield (Proof), MPa 120
250

Thermal Properties

Latent Heat of Fusion, J/g 350
370
Maximum Temperature: Mechanical, °C 120
990
Melting Completion (Liquidus), °C 620
1350
Melting Onset (Solidus), °C 570
1310
Specific Heat Capacity, J/kg-K 1000
500
Thermal Expansion, µm/m-K 26
15

Otherwise Unclassified Properties

Base Metal Price, % relative 12
24
Density, g/cm3 1.7
7.6
Embodied Carbon, kg CO2/kg material 23
4.4
Embodied Energy, MJ/kg 160
63
Embodied Water, L/kg 990
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
140
Resilience: Unit (Modulus of Resilience), kJ/m3 150
160
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 71
25
Strength to Weight: Axial, points 35
23
Strength to Weight: Bending, points 47
21
Thermal Shock Resistance, points 13
15

Alloy Composition

Aluminum (Al), % 4.4 to 5.4
0
Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0
16.5 to 19.5
Copper (Cu), % 0 to 0.010
1.5 to 2.5
Iron (Fe), % 0 to 0.0040
46.4 to 57.9
Magnesium (Mg), % 93.7 to 95.3
0
Manganese (Mn), % 0.26 to 0.6
0 to 2.0
Molybdenum (Mo), % 0
0.3 to 1.5
Nickel (Ni), % 0 to 0.0020
19 to 22
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.1
4.8 to 6.0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.22
0