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S66286 Stainless Steel vs. 7010 Aluminum

S66286 stainless steel belongs to the iron alloys classification, while 7010 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 S66286 stainless steel and the bottom bar is 7010 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
70
Elongation at Break, % 17 to 40
3.9 to 6.8
Fatigue Strength, MPa 240 to 410
160 to 190
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 75
26
Shear Strength, MPa 420 to 630
300 to 340
Tensile Strength: Ultimate (UTS), MPa 620 to 1020
520 to 590
Tensile Strength: Yield (Proof), MPa 280 to 670
410 to 540

Thermal Properties

Latent Heat of Fusion, J/g 300
380
Maximum Temperature: Mechanical, °C 920
200
Melting Completion (Liquidus), °C 1430
630
Melting Onset (Solidus), °C 1370
480
Specific Heat Capacity, J/kg-K 470
860
Thermal Conductivity, W/m-K 15
150
Thermal Expansion, µm/m-K 17
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
40
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
120

Otherwise Unclassified Properties

Base Metal Price, % relative 26
10
Density, g/cm3 7.9
3.0
Embodied Carbon, kg CO2/kg material 6.0
8.3
Embodied Energy, MJ/kg 87
150
Embodied Water, L/kg 170
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 200
22 to 33
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 1150
1230 to 2130
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
45
Strength to Weight: Axial, points 22 to 36
47 to 54
Strength to Weight: Bending, points 20 to 28
47 to 52
Thermal Diffusivity, mm2/s 4.0
58
Thermal Shock Resistance, points 13 to 22
22 to 26

Alloy Composition

Aluminum (Al), % 0 to 0.35
87.9 to 90.6
Boron (B), % 0.0010 to 0.010
0
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 13.5 to 16
0 to 0.050
Copper (Cu), % 0
1.5 to 2.0
Iron (Fe), % 49.1 to 59.5
0 to 0.15
Magnesium (Mg), % 0
2.1 to 2.6
Manganese (Mn), % 0 to 2.0
0 to 0.1
Molybdenum (Mo), % 1.0 to 1.5
0
Nickel (Ni), % 24 to 27
0 to 0.050
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.12
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 1.9 to 2.4
0 to 0.060
Vanadium (V), % 0.1 to 0.5
0
Zinc (Zn), % 0
5.7 to 6.7
Zirconium (Zr), % 0
0.1 to 0.16
Residuals, % 0
0 to 0.15