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364.0 Aluminum vs. S31727 Stainless Steel

364.0 aluminum belongs to the aluminum alloys classification, while S31727 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (9, 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 364.0 aluminum and the bottom bar is S31727 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
200
Elongation at Break, % 7.5
40
Fatigue Strength, MPa 120
240
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
78
Shear Strength, MPa 200
430
Tensile Strength: Ultimate (UTS), MPa 300
630
Tensile Strength: Yield (Proof), MPa 160
270

Thermal Properties

Latent Heat of Fusion, J/g 520
290
Maximum Temperature: Mechanical, °C 190
1010
Melting Completion (Liquidus), °C 600
1440
Melting Onset (Solidus), °C 560
1390
Specific Heat Capacity, J/kg-K 900
470
Thermal Expansion, µm/m-K 21
16

Otherwise Unclassified Properties

Base Metal Price, % relative 11
24
Density, g/cm3 2.6
8.0
Embodied Carbon, kg CO2/kg material 8.0
4.7
Embodied Energy, MJ/kg 150
64
Embodied Water, L/kg 1080
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
200
Resilience: Unit (Modulus of Resilience), kJ/m3 180
190
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 53
24
Strength to Weight: Axial, points 31
22
Strength to Weight: Bending, points 38
20
Thermal Shock Resistance, points 14
14

Alloy Composition

Aluminum (Al), % 87.2 to 92
0
Beryllium (Be), % 0.020 to 0.040
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0.25 to 0.5
17.5 to 19
Copper (Cu), % 0 to 0.2
2.8 to 4.0
Iron (Fe), % 0 to 1.5
53.7 to 61.3
Magnesium (Mg), % 0.2 to 0.4
0
Manganese (Mn), % 0 to 0.1
0 to 1.0
Molybdenum (Mo), % 0
3.8 to 4.5
Nickel (Ni), % 0 to 0.15
14.5 to 16.5
Nitrogen (N), % 0
0.15 to 0.21
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 7.5 to 9.5
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.15
0
Residuals, % 0 to 0.15
0