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AM60A Magnesium vs. S66286 Stainless Steel

AM60A magnesium belongs to the magnesium alloys classification, while S66286 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 AM60A magnesium and the bottom bar is S66286 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 8.8
17 to 40
Fatigue Strength, MPa 70
240 to 410
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
75
Shear Strength, MPa 130
420 to 630
Tensile Strength: Ultimate (UTS), MPa 230
620 to 1020
Tensile Strength: Yield (Proof), MPa 130
280 to 670

Thermal Properties

Latent Heat of Fusion, J/g 350
300
Maximum Temperature: Mechanical, °C 120
920
Melting Completion (Liquidus), °C 620
1430
Melting Onset (Solidus), °C 550
1370
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 62
15
Thermal Expansion, µm/m-K 26
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 69
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 12
26
Density, g/cm3 1.7
7.9
Embodied Carbon, kg CO2/kg material 23
6.0
Embodied Energy, MJ/kg 160
87
Embodied Water, L/kg 990
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17
150 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 190
190 to 1150
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 71
24
Strength to Weight: Axial, points 37
22 to 36
Strength to Weight: Bending, points 49
20 to 28
Thermal Diffusivity, mm2/s 37
4.0
Thermal Shock Resistance, points 14
13 to 22

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0 to 0.35
Boron (B), % 0
0.0010 to 0.010
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
13.5 to 16
Copper (Cu), % 0 to 0.35
0
Iron (Fe), % 0
49.1 to 59.5
Magnesium (Mg), % 91.8 to 94.4
0
Manganese (Mn), % 0.13 to 0.6
0 to 2.0
Molybdenum (Mo), % 0
1.0 to 1.5
Nickel (Ni), % 0 to 0.030
24 to 27
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0
1.9 to 2.4
Vanadium (V), % 0
0.1 to 0.5
Zinc (Zn), % 0 to 0.22
0