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S31277 Stainless Steel vs. 7010 Aluminum

S31277 stainless steel belongs to the iron alloys classification, while 7010 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 7010 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
70
Elongation at Break, % 45
3.9 to 6.8
Fatigue Strength, MPa 380
160 to 190
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 80
26
Shear Strength, MPa 600
300 to 340
Tensile Strength: Ultimate (UTS), MPa 860
520 to 590
Tensile Strength: Yield (Proof), MPa 410
410 to 540

Thermal Properties

Latent Heat of Fusion, J/g 310
380
Maximum Temperature: Mechanical, °C 1100
200
Melting Completion (Liquidus), °C 1460
630
Melting Onset (Solidus), °C 1410
480
Specific Heat Capacity, J/kg-K 460
860
Thermal Expansion, µm/m-K 16
24

Otherwise Unclassified Properties

Base Metal Price, % relative 36
10
Density, g/cm3 8.1
3.0
Embodied Carbon, kg CO2/kg material 6.7
8.3
Embodied Energy, MJ/kg 90
150
Embodied Water, L/kg 220
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
22 to 33
Resilience: Unit (Modulus of Resilience), kJ/m3 410
1230 to 2130
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
45
Strength to Weight: Axial, points 29
47 to 54
Strength to Weight: Bending, points 25
47 to 52
Thermal Shock Resistance, points 19
22 to 26

Alloy Composition


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Aluminum (Al), % 0
87.9 to 90.6
Carbon (C), % 0 to 0.020
0
Chromium (Cr), % 20.5 to 23
0 to 0.050
Copper (Cu), % 0.5 to 1.5
1.5 to 2.0
Iron (Fe), % 35.5 to 46.2
0 to 0.15
Magnesium (Mg), % 0
2.1 to 2.6
Manganese (Mn), % 0 to 3.0
0 to 0.1
Molybdenum (Mo), % 6.5 to 8.0
0
Nickel (Ni), % 26 to 28
0 to 0.050
Nitrogen (N), % 0.3 to 0.4
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
0 to 0.12
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0
0 to 0.060
Zinc (Zn), % 0
5.7 to 6.7
Zirconium (Zr), % 0
0.1 to 0.16
Residuals, % 0
0 to 0.15