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S31277 Stainless Steel vs. 1100A Aluminum

S31277 stainless steel belongs to the iron alloys classification, while 1100A aluminum belongs to the aluminum alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, 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 S31277 stainless steel and the bottom bar is 1100A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
69
Elongation at Break, % 45
4.5 to 34
Fatigue Strength, MPa 380
35 to 74
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 80
26
Shear Strength, MPa 600
59 to 99
Tensile Strength: Ultimate (UTS), MPa 860
89 to 170
Tensile Strength: Yield (Proof), MPa 410
29 to 150

Thermal Properties

Latent Heat of Fusion, J/g 310
400
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1460
640
Melting Onset (Solidus), °C 1410
640
Specific Heat Capacity, J/kg-K 460
900
Thermal Expansion, µm/m-K 16
23

Otherwise Unclassified Properties

Base Metal Price, % relative 36
9.5
Density, g/cm3 8.1
2.7
Embodied Carbon, kg CO2/kg material 6.7
8.2
Embodied Energy, MJ/kg 90
150
Embodied Water, L/kg 220
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
6.4 to 23
Resilience: Unit (Modulus of Resilience), kJ/m3 410
5.9 to 150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 29
9.1 to 17
Strength to Weight: Bending, points 25
16 to 25
Thermal Shock Resistance, points 19
4.0 to 7.6

Alloy Composition


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Aluminum (Al), % 0
99 to 100
Carbon (C), % 0 to 0.020
0
Chromium (Cr), % 20.5 to 23
0
Copper (Cu), % 0.5 to 1.5
0.050 to 0.2
Iron (Fe), % 35.5 to 46.2
0 to 1.0
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0 to 3.0
0 to 0.050
Molybdenum (Mo), % 6.5 to 8.0
0
Nickel (Ni), % 26 to 28
0
Nitrogen (N), % 0.3 to 0.4
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15