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S31277 Stainless Steel vs. 6182 Aluminum

S31277 stainless steel belongs to the iron alloys classification, while 6182 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 6182 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
70
Elongation at Break, % 45
6.8 to 13
Fatigue Strength, MPa 380
63 to 99
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 80
26
Shear Strength, MPa 600
140 to 190
Tensile Strength: Ultimate (UTS), MPa 860
230 to 320
Tensile Strength: Yield (Proof), MPa 410
130 to 270

Thermal Properties

Latent Heat of Fusion, J/g 310
410
Maximum Temperature: Mechanical, °C 1100
190
Melting Completion (Liquidus), °C 1460
640
Melting Onset (Solidus), °C 1410
600
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
8.4
Embodied Energy, MJ/kg 90
150
Embodied Water, L/kg 220
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
21 to 26
Resilience: Unit (Modulus of Resilience), kJ/m3 410
110 to 520
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 29
23 to 32
Strength to Weight: Bending, points 25
30 to 38
Thermal Shock Resistance, points 19
10 to 14

Alloy Composition


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Aluminum (Al), % 0
95 to 97.9
Carbon (C), % 0 to 0.020
0
Chromium (Cr), % 20.5 to 23
0 to 0.25
Copper (Cu), % 0.5 to 1.5
0 to 0.1
Iron (Fe), % 35.5 to 46.2
0 to 0.5
Magnesium (Mg), % 0
0.7 to 1.2
Manganese (Mn), % 0 to 3.0
0.5 to 1.0
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
0.9 to 1.3
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0
0 to 0.2
Zirconium (Zr), % 0
0.050 to 0.2
Residuals, % 0
0 to 0.15