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1350 Aluminum vs. S31277 Stainless Steel

1350 aluminum belongs to the aluminum alloys classification, while S31277 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (8, 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 1350 aluminum and the bottom bar is S31277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
210
Elongation at Break, % 1.4 to 30
45
Fatigue Strength, MPa 24 to 50
380
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
80
Shear Strength, MPa 44 to 110
600
Tensile Strength: Ultimate (UTS), MPa 68 to 190
860
Tensile Strength: Yield (Proof), MPa 25 to 170
410

Thermal Properties

Latent Heat of Fusion, J/g 400
310
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 660
1460
Melting Onset (Solidus), °C 650
1410
Specific Heat Capacity, J/kg-K 900
460
Thermal Expansion, µm/m-K 24
16

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
36
Density, g/cm3 2.7
8.1
Embodied Carbon, kg CO2/kg material 8.3
6.7
Embodied Energy, MJ/kg 160
90
Embodied Water, L/kg 1200
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 0.77 to 54
320
Resilience: Unit (Modulus of Resilience), kJ/m3 4.4 to 200
410
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 7.0 to 19
29
Strength to Weight: Bending, points 14 to 27
25
Thermal Shock Resistance, points 3.0 to 8.2
19

Alloy Composition

Aluminum (Al), % 99.5 to 100
0
Boron (B), % 0 to 0.050
0
Carbon (C), % 0
0 to 0.020
Chromium (Cr), % 0 to 0.010
20.5 to 23
Copper (Cu), % 0 to 0.050
0.5 to 1.5
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.4
35.5 to 46.2
Manganese (Mn), % 0 to 0.010
0 to 3.0
Molybdenum (Mo), % 0
6.5 to 8.0
Nickel (Ni), % 0
26 to 28
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.1
0 to 0.5
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0 to 0.020
0
Vanadium (V), % 0 to 0.020
0
Zinc (Zn), % 0 to 0.050
0
Residuals, % 0 to 0.1
0