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392.0 Aluminum vs. S31727 Stainless Steel

392.0 aluminum belongs to the aluminum alloys classification, while S31727 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (10, 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 392.0 aluminum and the bottom bar is S31727 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 75
200
Elongation at Break, % 0.86
40
Fatigue Strength, MPa 190
240
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
78
Tensile Strength: Ultimate (UTS), MPa 290
630
Tensile Strength: Yield (Proof), MPa 270
270

Thermal Properties

Latent Heat of Fusion, J/g 670
290
Maximum Temperature: Mechanical, °C 170
1010
Melting Completion (Liquidus), °C 670
1440
Melting Onset (Solidus), °C 580
1390
Specific Heat Capacity, J/kg-K 900
470
Thermal Expansion, µm/m-K 19
16

Otherwise Unclassified Properties

Base Metal Price, % relative 10
24
Density, g/cm3 2.5
8.0
Embodied Carbon, kg CO2/kg material 7.5
4.7
Embodied Energy, MJ/kg 140
64
Embodied Water, L/kg 950
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.4
200
Resilience: Unit (Modulus of Resilience), kJ/m3 490
190
Stiffness to Weight: Axial, points 17
14
Stiffness to Weight: Bending, points 56
24
Strength to Weight: Axial, points 32
22
Strength to Weight: Bending, points 39
20
Thermal Shock Resistance, points 15
14

Alloy Composition

Aluminum (Al), % 73.9 to 80.6
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
17.5 to 19
Copper (Cu), % 0.4 to 0.8
2.8 to 4.0
Iron (Fe), % 0 to 1.5
53.7 to 61.3
Magnesium (Mg), % 0.8 to 1.2
0
Manganese (Mn), % 0.2 to 0.6
0 to 1.0
Molybdenum (Mo), % 0
3.8 to 4.5
Nickel (Ni), % 0 to 0.5
14.5 to 16.5
Nitrogen (N), % 0
0.15 to 0.21
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 18 to 20
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.3
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.5
0